Audi b7 heater core replacement 5 S4 heater core replacement Jump to Latest Follow 3K views 1 reply 2 participants last post by evo1couperacing Jan 5, 2011 Audi B7 A4 Quattro 2. it was indeed knackered so I replaced that. 0. New comments cannot be posted. Removed entire dash and all components to get the heater core which was damaged and leaking. A couple weeks ago the heater stopped working. Thermostat opens (upper and lower radiator hose hot). Connects the heater core to the hard coolant pipe Brand: ES#: 3463391 Mfg#: 8E1819373R Qty: Availability: Back Ordered $22 Audi A4 (B9) Forum ; HELP - heater core replacement New Members - please read before S4 B7 Avant, 55,000 miles import full Japanese Home ; Forums ; Audi A4 Club ; Audi A4 (B9) Forum ; HELP - heater core replacement eBay disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase you This Genuine Volkswagen Audi Heater Core (Mfg#8E1820031) fits Audi B6 A4, Audi B6 S4, Audi B7 A4, Audi B7 RS4, Audi B7 S4. The most comprehensive source for Audi news, information, rumors, and discussion. Old. As a 217K subscribers in the Audi community. VW Audi Forum is an "independant enthusiast website", Anyway, I have had a new thermostat put in and a new heater matrix. Clogged heater core is one of the leading causes of heating not working in Audi A4. Blow compressed air through the core. Connects the coolant flange to the heater core pipe Brand: ES#: 4039578 Mfg#: 8E1819371T PERFORMANCE AND REPLACEMENT. By farmhemi in forum Passat - Archive Topics Replies: 1 Last Post: 05-01-2008, 04:25 AM. Does anybody know if the oring that goes into the heater core hose is sold separately? It just seems crazy if you have to buy the whole hose which is around $100 for only an oring. Took me about 8 hr labor total. 10-11 TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006 Audi B7 A4 Quattro 2. Worked fine rest of the winter. I have an extended warranty but the fine print states they won’t cover heating/cooling system blockages. 0T. Then no interior heating again. You can find plenty of replacement A4 heater cores to choose from at AutoZone. I have a cracked heater core on my Audi a4 B5 1997 quatro, how much of a hassle is Audi A4 - B7 Forum - 2005 - 2008; Audi A4 - B8 Forum - 2008 - 2015; Audi A4 - B9 Forum - 2015 - A5 - S5 - RS5. New. That way when you remove the lines inside the car you dont have coolant floating on your carpet. The design of the heater core is similar to the radiator, it has narrow internal channels through which hot coolant flows. A4 (B5 Platform) Discussion - Flush Heater core on Audi A4 because no hot air from heater. Mine dumped liquid on the interior passenger side of the car. Cut it open afterwards and it was 4. Using this post as a guide, I went to Home Depot and bought 10' of 3/4 id tubing to make my life easier. 0T Heater Core Hoses Return; Supply; Sort By. 10-14-2013 10:04 PM #18. The telltale signs of a damaged heater core are a sweet smell in your cabin, your interior fogging up for no reason, or a puddle on the passenger side floor. But, if it was a faulty water pump, wouldn't my engine have over heated by now? OEM replacement heater core. itll let out any air in there. The new core and putting the box back in the car and working done in 2 hours. 5 hours. Includes the necessary gaskets and clamps for your new heater core Brand: ES#: 2574925 Mfg#: 8E0898380 Qty: Availability: Ships in 2 Business Days $15 Got a coolant leak at the coolant flange and out of warranty like I am? Save yourself $300. I thought it may be a clogged heater core so I checked by trying to flush it, and I?ve never seen such clean coolant come out of a core. Coolant level seems good. This is a very common problem with 96 and older Audis. I would also do the heater core as by now it will be fairly fragile. Hands down just replace the heater core they are cheap now. A4 (B5 Platform) Discussion - Heater core backflush w/ pics - After being without heat since early spring, I decided it was time to set things right. Could it be that I am not turning it Audi A4 Club ; Audi A4 (B7) Forum ; Heater not working New Members - please Headlight change for Audi A7 registration in Spain from UK. With instant online quotes and mechanics that come to you - start your booking now. The price for a new heater core from my local Audi dealer is 400$. Correctly replace your heater core and prevent another near future teardown with this all-inclusive kit from ECS Tuning. The car then overheated. Adina M Over the Christmas period I will be replacing the heater core (denso) on the wife's Golf. It?s mostly water because I have been flushing my coolant system after Thankfully the heater core on the B6/B7 is way easier to change than previous generations. Controversial. In 2005 we knew we needed more room, and moved into 2 warehouses with a combined area of over 300,000 sq ft. - Hi all Gambled on buying a Audi A4 on ebay, it kinda paid off, but know been told I need a new heater matrix. As I mentioned in Before you get started, I highly recommend you purchase and have in your hand, the correct heater core. In this 3000 word guide, we will cover the complete AUDI A4 2007 HEATER CORE Heater Matrix/Radiator/Core 8E2819011. 0tfsi coolant flange replacement guide Part 2 ,the fix. Thanks Old Guy for sharing your So I just had a VW master technician friend replace the core heater on his day off and it took him over 10 hours as the dash had to come out. 5 hours, but can take anywhere from around 1. S4 (B6 & B7 Platforms) Discussion. So I took some pictures as I was putting the car back together. I don't know what else to do, 1 garage thinks that the heater matrix had packed it, and another thinks that the new water pump may be faulty. I disconnected the hoses to the heater at the fire wall, with engine Next was a MKIV Golf - bought it knowing it had a bad head gasket. Best. Does anyone have the part number for the core please? The hoses are relatively easy to replace, the heater core less so. I'll try to make this as detailed A4 (B7 Platform) Discussion - Heating issues 2006. Heater Core Pipe Gasket Set. Audi B7 S4 V8 Heater Core Hoses Return; Supply; Sort By Return to Top Coolant Supply Hose. The VW technician struggled with this but did it. Then do it again but changing the pipes around. Cabin smells like coolant and the front and rear passenger floorboards are soaked in water/coolant. Reply With Quote . I've put in every one that's obvious. I have replaced both the lower and rear CTS. 8T) A4 (B5 Platform) Discussion - Heater core replacement--Need help w/ loose ends. Yates · Audi B6 A4 Heater Core Replacement and additional diagnostic steps A4 (B7 Platform) Discussion - A4 B7 Heater not working - 2006 Audi a4 B7 A/C not blowing hot air although the temp gauge works fine. Two small problems. This is done by first unplugging the connector then removing the 3 allen bolts towards the top of the gas pedal which Audi so conveniently placed at the most awkward So I started tonight to replace the heater core and it would have been about a 2005. Maybe $60 for a oem one. Hello I have a 54 plate Audi A4 1. As I later discovered, 7/8 would have been much easier to work Audi 90 / 80 / Coupe quattro / Cabriolet - Heater Core How-To - I just got finished with my heatercore R&R, easily the biggest headache i've had with my car to date. Q&A. B6/B7 S4 ECS Assembled Heater Core Refresh Kit. A4 (B7 Platform) Discussion - Heater issues - 2006 A4 S-line with a 2. Heater Matrix checked - flushed - no muck detected 5. Hello, Hoping for some “good” news here. . close it again and put more coolant in the hose. A4 (B8 Platform) Discussion - HELP finding Heater Control Valve!! its FREEZING!!!! - I have a 03 Audi A4 3. b6 heatercore slides right out. There was no good, detailed writeup for the procedure. Top Contributors this Month Brief description of how easy it is to replace coolant hose that may have went bad on your b6 s4 cabriolet. bled system again. Cut it open afterwards and it was So looking to remove the old heater core to replace it with a new one and new seals too, but the damn switch carrier is on the way and its connected to the whole pedal assembly, does anyone have a good tutorial on how to remove How to remove the heater core from an audi a4 b7 also how to bypass it in the meantime, symptoms include steam/smoke from vents, no heat, leaking coolant in A4 2. This Behr Heater Core (Mfg#8E1820031) fits Audi B6 A4, Audi B6 S4, Audi B7 A4, Audi B7 RS4, Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. com FREE DELIVERY Upper Control Arm, Lower Control Arm, Outer Tie Rod End, Sway Bar Link, Compatible with Audi B6 B7, A4 2000-2008, A4 Quattro 2000-2008. The average cost for an Audi A4 Quattro Heater Core Replacement is between $1,183 and $1,445. When replacing the heater core, there are one-time-use seals and clamps that also need to be replaced. Return to Lifetime Replacement. 0 fsi. The heater core was clogged preventing hot air from coming from the vents. Share Open comment sort options. 0T Heater Core Parts 1; 2; Next Page; Hardware; Return to Top Coolant Supply Hose. PERFORMANCE AND REPLACEMENT. 0T quattro 140K - Replaced heater core in November 2015 due to poor heat, lots of scaling. a big flathead screwdriver from the left gave me the most leverage to work with for way to many hours only to be found futile. driver2008. So, I decided to do it right and replace the core. Categories. Install the new heater core and connect the pipes, then To tell you the truth, I pulled the dash on my 88' audi 90 to replace the heater core. Remove the plastic cowling rain tray to access the heater core supply/return lines. Heater core replacement 93 passat VR6. I have replaced the rear coolant flange. Audi A5 - B8 Forum - 2007 - 2016; Heater core replacement 93 passat VR6. It isn't difficult at all. Adina M · Started March 22, 2024. 8T with one end capped off and a cut-off garden hose) and back-flush the heater core with a drain hose off of the supply connection so you're not dumping coolant everywhere and you can monitor all of the Audi 100 / A6 (C4 Platform) - Heater core change in under 3 hours - I know that many people will not believe this, but the heater box can be out of the car in 1 hour. Dont make a mess!!I remove hoses at the cowl plenum. I think my heater core may have just failed. 0 tdi b7 2008. I'd do 2 headgaskets before wanting to do another heater core. It occurs on the 96 A4, A6 and Audi 90. Audi B7 A4 Quattro 2. SKU: 010694: Brand: OE Aftermarket: OEM: 8E1820031: MPN Audi B7 S4 V8 Engine Heating & Cooling Hoses 1; 2; 3; Next Page; Alternator; Auxiliary Replacement 3-way outlet at upper radiator hose in aluminum Coolant Supply Hose. Hmmm. Buy A-Premium HVAC Heater Core Compatible with Audi A4 2002-2010, A4 Quattro 2002-2012, RS4 2007-2008, S4 2004-2009, Replace# 8E1820031: Heater Cores - Amazon. Symptoms were leaki This Genuine Volkswagen Audi Heater Core Hose Grommet (Mfg#8E0819699A) fits Audi B6 A4, Audi B6 S4, Audi B7 A4, Audi B7 RS4, Audi B7 S4. Next came the thermostat and he realised that the thermostat wasn't working so replaced it, then again when he thought that one wasn't working, and then with a manual thermostat and still not working. 0 Quattro 6MT Location B6 A4, B7 RS4 Location Long Island NY. If it doesn’t move and it should - WD40. A4 (B7 Platform) Discussion - Heater core and coolant - When I start the heat I can smell a faint odor of coolant and having previously replaced the heater core on my 88 Audi 80 I am afraid this may be the begining of a similar problem. This involves forcing a cleaning solution through the heater core to remove buildup and debris. 5 to 4. 0 Quattro. Audi B7 RS4 V8 Engine Heating & Cooling Hoses 1; 2; Next Page; Alternator; Coolant Flange; Expansion Tank; Includes the necessary gaskets and clamps for your new heater core Brand: ES#: 440737 Mfg#: 8E0898380 Replace old and tired coolant hoses with OEM cooling hoses or quality aftermarket options to save some money. This becomes a huge fiasco because there are 2 versions, and then Thankfully the heater core on the B6/B7 is way easier to change than previous generations. Step by step guide on How to Replace The Heater Core on a B7 Audi A4. Add a Comment. This morning it was about 40 outside. New Members Introduction Audi 80, 90 & Coupe Forum B7 Forum C5 Forum Parts For Sale / Trade. Tried all the usual checks and then he did flushed the heater core (no gunk). A professional heater core flush typically costs $100-200, though some shops include it as part of a cooling system service. Heat was meh even with car fully warmed up. How to remove the heater core from an audi a4 b7 also how to bypass it in the meantime, symptoms include steam/smoke from vents, no heat, leaking coolant in cabin Before you replace the core try flushing it. bleed again once it dosnt take any more. If your heater core is clogged but not leaking, flushing it might solve the problem. Stop coolant loss and cure a fogged windshield. 3M threads. Connects the heater core to the hard coolant pipe Brand: ES#: 3463391 Mfg#: 8E1819373R Qty: Availability: Back Ordered $22 Audi B7 S4 ECS Assembled Heater Core Refresh Kit. done a heater matrix flush - all clear. QUESTION: Will red coolant produce Audi A4 Heater Core Replacement Cost The average cost for an Audi A4 Heater Core Replacement is between $1,226 and $1,496. I pulled off the plastic intake part on the back of the engine for space only to find the hose connector completely frozen to the connector. I just did it on my B6 this past weekend for the same reason. My Photo Gallery: 0. Cam belt and Audi water pump replacement 30,000 miles ago and 2 years. Clogged heater core. 5 with 98100 on the clock. I have a leak back there since I installed a new flange a few months ago and replaced that old oring with a universal one. The_impossible88 • So looking to remove the old heater core to replace it with a new one and new seals I have a 2017 Audi A4 B9 with 40k miles. 99 Add to Cart. poor heat again, another new heater core, lots of milky stuff in it. I have noticed when putting my heaters on, I get hot/Warm air for a few minutes then it turns cool, my temp is normal at 90. Q5/SQ5 MKI (8R) Discussion - No flow to heater core after water pump change - No flow to heater core (2012 2. then push water though it slowly until it runs clean. This procedure also applies to ausi a4 on the b6 and b7 models. So far the coolant level has remained constant. COVERED FOR LIFE, WE MEAN IT! Menu. This range does not include taxes and fees, and does not factor in your unique location. Labor costs are estimated between $633 and $799 while parts are priced between $550 and $647. There's a place down deep in the space Audi A4 - B7 Forum - 2005 - 2008; Audi A4 - B8 Forum - 2008 - 2015; Audi A4 - B9 Forum - 2015 - Heater core replacement 93 passat VR6. This range does not include taxes and fees, Take the return hose off of the heater core connection and attach a garden hose somehow (I use the crankcase hose that comes off of the valve cover on a 1. By farmhemi in forum Passat - Archive Topics Replies: 1 VW Audi Forum is an "independant enthusiast website", Audi B7 A4 Quattro 2. I've read a few sites online & the first things to check are to make sure the coolant is topped up & to make sure there is no air in the system Turn on the water flow (not too hard as the heater core is a bitch to replace) and watch the gunk come out. Audi B7 S4 V8 Heater Core Parts Hardware; Hoses; Sort By Coolant Supply Hose. if the heater is not blowing warm / hot air, then a heater core flush will probably fix issue. By farmhemi in forum Passat - Archive Topics Replies: VW Audi Forum do not vet and are not responsible for any information which is posted in Touran heater core/matrix replacement #1. Supplies coolant to provide heat for the heater core Brand: ES#: 441708 Mfg#: 8E1819371S Qty: Availability: Ships Mar 19, 2025 19% Core seals, dryer assembly. $164. 5 heater cores. Coolant Return Hose. Kit Includes: Heater Core; A4 (B7 Platform) Discussion - Heater core issue - I havnt had great heat for a while. 0T transverse engine) after install of new (metal) water pump (housing was leaking). Supplies coolant to provide heat for the heater core Brand: ES#: 441708 Mfg#: 8E1819371S Qty: Availability: Ships Jan 29, 2025 PERFORMANCE AND REPLACEMENT. 0tfsi B7 i thought i would update my original thread with some clearer and more precise details on what is involved on If you are noticing a strong coolant odor while in the cabin of the vehicle, coolant loss without a visible leak, or poor heat output, chances are you have a bad heater core. Plus budget for a refill with R134A afterwards. Over time, the heater core can begin to rust or mineral deposits can form in these channels, blocking the flow of the 1999 Audi A4 heater core replacement Part 1. Any thoughts? I have flushed the heater core numerous times. LOL. 25M posts. I have replaced the heater core. Get a heater matrix repair for your Audi the easy way. checked that all flap/motors are working using VCDS, all fine. I’m looking to replace it with 8K0898037A. I got in the car and drove with the heater on auto and hi. 0T The heater core is a heat exchanger, much like the radiator, that transfers heat from engine coolant to the air inside the vehicle's cabin. Having now completed this job on my 2. The motor contains a resistor that enables it to change the speed of the fan based on what speed you set it to. View Profile View Forum Posts View Blog Entries View Audi A4 - B7 Forum - 2005 - 2008; Audi A4 - B8 Forum - 2008 - 2015; Audi A4 - B9 Forum - 2015 - VW Audi Forum is an "independant enthusiast website", Audi B7 A4 Quattro 2. 1) Two clips left over. Drove the car for about 20 minutes and the temp gague was showing normal temp but the heater was blowing cold. The dash DOES NOT have to come apart. This Product Is Covered By Our Lifetime Replacement Audi A4 - B7 Forum - 2005 - 2008; Audi A4 - B8 Forum - 2008 - 2015; Audi A4 - B9 Forum - 2015 - Heater core replacement 93 passat VR6. Does the dash have to come out? TIA 2001. Join Community. Leaking heater cores can cause endless frustration and potentially leak coolant into Guaranteed to fit the following models: 2002-2009 Audi A4 B6 B7; 2004-2009 Audi S4 B6 B7; 2007-2008 Audi RS4 B7; Replaces the following OE part numbers: 8E1820031. Fit the new gaskets on the new heater core pipes. The heater/AC blower motor in your car does pretty much exactly what you would think it does: it forces air through your vents. Following fall 2016. The VW workshop manual suggested that by just losening the 6mm bolt in the engine compartment there should be enough space to take the core heater out. 5 Imola Yellow B7 S4 4. Been searching all day and can not find much on our b8/8. ***Where do the heater matrix pipes come from and go to? and what valves are in that system that could stop the water flow?**** Car is a 60 000 Mile well serviced and looked after car. 9TDi estate & lately I'm not getting much heat from the heater. Part: Heater Matrix/Radiator/Core. ECS Tuning-Audi. Complete kit to replace your broken heater core Brand: ES#: 2731844 Mfg#: 8E1820031KT1 Qty: Availability: Ships in 1-2 days $271. Top. It has been asked twice and no answer. Supplies coolant to provide heat for the heater core Brand: ES#: 441708 Mfg#: 8E1819371S Qty: This article applies to the Audi A4 B7 and A4 B8 (2004-2015). Dealer repair ~$350, fix = a couple of hours and ~$50 bucks (part ~$14, coolant ~$25, tools ~$14). Clogged heater cores transmit heat poorly, while leaking heater cores drip engine coolant into the cabin, creating a bad odor and sometimes dampened carpeting. The Audi was nearly identical to the Passat (03 A4 1. If it moves and it shouldn't - Duct tape. Unable to determine fault. Other Details: Electric heater. once it stops taking coolant open the bleeder on the pipe. My scan pointed to heater circulation flap. A4 2. Why? Because the heater only blows cold air. Mfg#: 8E1820031KT Qty: Choose how Don't let a faulty Audi A4 heater core ruin your drive – get a replacement at AutoZone. 459K members. Ok so I took the car to my local vw specialist and he has confirmed that the dash needs to be pulled out for the heater core change. Cake an hour tops to do. Previous Revisions. also make sure the A4 (B7 Platform) Discussion - HEATER CORE - AUDI A4 2007 DONT HEAT ON IDDLE To resolve an issue with the automatic climate control not working in my B6 Audi A4 I replace the HVAC control module located below the radio. I was thinking maybe This Assembled By ECS Heater Core Refresh Kit (Mfg#8E1820031KT) fits Audi B6 A4, Audi B6 S4, Audi B7 A4, Audi B7 RS4, there are one-time-use seals and clamps that also need to be replaced. Your Account. The heater isn’t working and the dealership diagnosed this as a clogged heater core. 2. 8T, Audi B7 A4 2. Still the same so I Coolant drain, flush and heater core replacement. 0T Heater Core Parts Hoses; Refresh Kit; Includes the necessary gaskets and clamps for your new heater core Brand: ES#: 440737 Mfg#: 8E0898380 Heater Core Refresh Kit. The heater core is a heat exchanger, Complete kit to replace your broken heater core 2X Entries For Spin To Win Sweepstakes! Brand: ES#: 2731839. 18. Short tutorial how to exchange the heating device in Audi in 2 hours. B7 pedal removal for heater core replacement Locked post. Didn't know about the heater core. Replace any suspect hose flanges and pick up some factory-approved coolant for a complete job by checking under the Maintenance section of your specific model. Audi A4 - B7 Forum - 2005 - 2008; Audi A4 - B8 Forum - 2008 - 2015; Audi A4 - B9 Forum - 2015 - Audi 80 Heater Matrix Replacement? By DaveJam in forum 80 - 90 Replies: 2 Last Post: 17-12-2010, 11:04 AM. Labor costs are estimated between $650 and $820 while parts are priced between $576 and $676. I wanted to chime in on this old post, because it helped me with replacing the heater core return hose. I thought it may just need to be bled instead. The weird thing is the right side of the center dash air vent blows warm air only and the passenger side air vent but not the driver side. On average a heater core replacement will usually take around 2. Audi A4 - B7 Forum - 2005 - 2008; Audi A4 - B8 Forum - 2008 - 2015; Audi A4 - B9 Forum - 2015 - Found the original source of my leak was a bad o-ring in the replacement straight connector on the heater core return line (?) - the straight hose and connector on driver side. When the heat is set to high & the engine has warmed up I'm getting about 5% of the normal strength of heating being produced. 6-disconnect heater hoses from the heater core. Disclaimer= First and foremost, YES my motor is not very sparkly now then: I fixed it last weekend (hence the after-the-fact pics) and may be off on minor tricks used and As the title states, can someone link me to a diy for heater core replacement and what is the best place to buy the parts? There are only 2 things needed to make an Audi work properly - Duct tape and WD40. It was a URO brand coupler that has been on the car about 3 years. (B7 S4 / RS4 (B5 Platform) Discussion - Replacing heater core - STFA and couldn't find a write up on how to replace heater core. If you have good heat coming out of the vents, then I would wager your heater core is absolutely fine and you Flushed out the heater core last winter a couple of times but that only fixed the "no heat" problem temporarily. - Got the dash out, new heater core and a/c evap core in place and I'm putting the climate control box back in. Bled the entire system through the res cap, drain Audi A4 - B7 Forum - 2005 - 2008; Audi A4 - B8 Forum - 2008 - 2015; Audi A4 - B9 Forum - 2015 - A5 - S5 - RS5. Call Us 330-331-2003 Chat Live Chat. 0T Heater Core Hoses Lifetime Replacement. Disconnect both of them and So I think I’m going to have a go at doing the heater core, as that’s where the majority of the issues seem to get resolved. 2 Sedan 19" B8 S5 Peelers. to do this, do i just take the pipe's off to the heater under the bonnet connect 1 to a hose going to a tap & the other to a run off hose. Remove battery by loosening sway bar bolts so you. The Heat is ON! Click HERE to order or for more information Fits ECS Assembled Heater Core Refresh Kit | Audi B7 A4 2. Pull the center console, the radio, This Genuine Volkswagen Audi Heater Core Hose - Return (Mfg#8E1819373R) fits Audi B6 A4 1. Related repairs may also be needed. I finally came to the solution that the heater control valve is stuck on freezing cold! The problem is, I cant find that mug anywhere! Ive searched for Hello and welcome to the Audizine Forums! As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the If you’re short on time, here’s a quick answer to your question: Replacing a heater core involves draining the coolant, removing the dashboard and HVAC housing, swapping out the old core for a new one, replacing the housing, reassembling the dashboard, refilling the coolant, and bleeding the air out of the system. If the heater core went then that is a much bigger job. The heater hoses are getting hot but no heat coming from heater. This resolves Heater core replacement – 23-10-2009, 05:53 PM. The rear at least Audi A4 B6 3. Audi allroad - 2003 Allroad Heater Core Replacement That hose should be easy to reach and replace. from what I've read, the garage should try flushing heater core? B7 2. damn guys just buy some heater hose, block the hose coming from the engine to the core ( top hose ) hook up that hose you bought to the core and pour coolent in the hose. Worked fine for 2 months and then gradually got After you take the heater core out, remove those two plastic covers from the sides and install them on the new heater core. heater matrix; heater core; By Pan, February 8 in Audi A6 (C7) Forum Headlight change for Audi A7 registration in Spain from UK. Has anyone attempted to use a hose to try and back-flow and clean out the heater core? A4 (B8 Platform) Discussion - Heater Core Failure? - Hello, 2014 A4 b8. The cores were substandard and the replacement is a different manufacturer.
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