03 Audi a4 quattro 1.8t.I recently replaced the oil cooler and it was the problem with thw oil and water exchange but now it continues to overheat.

Asked by Jan 28, 2015 at 08:39 PM about the 2003 Audi A4 1.8T Quattro

Question type: Maintenance & Repair

After replacing the oil cooler and flushing then cooling system the car was back in good shape until now....The car has been running great with the exception of me needing to flush the heater core. I finally finished with the flushing and decided to run one more can of flush through the system with the hopes of catching that last little bit of oil that was left over from the bad oil cooler. I allowed the flush to run through the system for a week averaging around 800 miles. During this time the was no problems with the cooling system, heater core ,none of that. So last night I decide to drain the radiator containing the flush and replace it with antifreeze. Everything went well . I bled the system drove apx. 25 miles checked it again and all was good. Well this morning on the way to work I looked down and the car was beginning to overheat. I pulled into the store to see what was going on and noticed that the water was boiling inside the cooling system. When I opened the resevouir to add water out came a lot of steam. O the way home I had to stop several times to refill the water.The coolant light was flashing this whole time and towards the end so was the oil light. The car is full of oil though. Im guessing the oil light was from the heat maybe? Don't know for sure. After  all this I thought that maybe all the flushes affected the thermostat so I took it out to see if the car would over heat with out it. And it dosent . Only when moving. You can drive 30 minutes at perfect operating temp. and the next second it takes off to the hot side. The water will be boiling when you stop and then it will go right back to normal....What gives???? Im constantly loosing water to but cant see a leek and its not in the oil.

1 Answer

Hello my partner has exactly this problem same car but 1999 have you found out the problem as we have no idea if so we would be very grateful if you could let us know or help us out kind regards

Your Answer

Add photo

Related Questions

  • 2000 Audi A4 Quattro 1.8t not starting

    Okay soo I have a 2000 Audi A4 Quattro 1.8t, let me just say I love this car but omg the issues I've had since getting it. So recently it's decided not to start. It has power & seems to want to bu...

    2000 Audi A4 1.8T Quattro

    -

    Maintenance & Repair

  • Bizarre Audi A4 oil consumption 2 answers

    First, here are some details on my car: 2009 Audi A4 2.0T Quattro Engine 54,000 miles I purchased this car a year and a half ago with 33,000 miles on it. Lately the oil has been burning up at an...

    2009 Audi A4 2.0T Quattro

    -

    Maintenance & Repair

  • What else could cause 2009 Audi A4 coolant being sucked into somewhere, but no leaks? Car overheats now. 4 answers

    We took the car to an auto repair shop because coolant was being sucked into somewhere, but no leaks. The shop replaced the radiator hoses & bled the system. Problem came back. Took the car back....

    2009 Audi A4 2.0T Quattro

    -

    Maintenance & Repair

  • Car starts and it shuts off/loses power 153 answers

    I have a 2003 Audi A4 Turbo.93K on it. When I start the car, the engine starts and as the RPM gauge goes up, it just goes right back down, the car shutss off, as if it can not stay on, sometimes its s...

    2003 Audi A4 1.8T Quattro

    -

    Maintenance & Repair

  • Do I need to replace my thermostat in the car? 4 answers

    I have a 2003 Audi A4 Quattro 1.8L turbo. Recently I had the water pump replaced due to coolant leaking out. Now while driving, the temperature gauge shows normal but after 15 to 20 minutes the te...

    2003 Audi A4 1.8T Quattro

    -

    Maintenance & Repair

Search Audi A4 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Audi A4 Experts

#1 Deathjam4
Deathjam4
Reputation 2,900
#2 FordNut
FordNut
Reputation 770
#3 lukeyramone
lukeyramone
Reputation 480
View All

Related Models For Sale

Used BMW 3 Series
1,558 Great Deals out of 39,015 listings starting at $1,200
Used Audi A6
159 Great Deals out of 7,673 listings starting at $950
Used Audi S4
65 Great Deals out of 920 listings starting at $3,450
Used Mercedes-Benz C-Class
630 Great Deals out of 32,385 listings starting at $1,990
Used Audi A3
80 Great Deals out of 6,827 listings starting at $3,500
Used BMW 5 Series
632 Great Deals out of 15,459 listings starting at $2,495
Used Honda Accord
1,009 Great Deals out of 75,847 listings starting at $899
Used Ford Mustang
542 Great Deals out of 43,035 listings starting at $1,699
Used Audi A8
50 Great Deals out of 1,824 listings starting at $3,795
Used Chevrolet Camaro
417 Great Deals out of 40,746 listings starting at $3,500
Used Mercedes-Benz E-Class
367 Great Deals out of 22,706 listings starting at $1,450

Used Cars For Sale

2017 Audi A4 For Sale
5,373 listings starting at $32,631
2016 Audi A4 For Sale
12 Great Deals out of 267 listings starting at $25,888
2015 Audi A4 For Sale
32 Great Deals out of 385 listings starting at $18,750
2014 Audi A4 For Sale
60 Great Deals out of 1,111 listings starting at $15,985
2013 Audi A4 For Sale
56 Great Deals out of 767 listings starting at $12,995