2009 Audi A4 turbo charger

Asked by GuruB61JW Jan 19, 2019 at 01:37 PM about the 2009 Audi A4

Question type: Maintenance & Repair

My Audi A4 was diagnosed with a bad turbo charger by Audi Service. Was
gong to drive it to shop for repair but now the car won't start.  Battery is fine but
it sounds like no fuel getting to the engine to turn it over. Could this be due to
the bad turbocharger or is there another problem (fuel pump, for example) that
I'm not aware of?

2 Answers


Have it towed to their Audi Service. They did the diagnostic.

Going through what I think it's the same issue now with my A4 b6. It appears to me the reason why mine won't start is because a turbo is getting flooded with coolant and the system gets airlocked somehow. I stumbled upon slightly pulling the engine temperature sensor (upper 4 pin one on back of motor) toward the front of the motor to unseat it ever-so-slightly and release air pressure. Then the motor starts right up as if there were no problems at all. Car heats up very quickly so be very careful when releasing pressure if it was already running because hot steam may come out and also be careful running the car so you don't blow a head gasket or any of the other catastrophic consequences that come with overheating your motor but this will enable you to drive a short distance if not more. I was able to drive my 1.8 t 40 miles constantly monitoring the engine oil temperature and block temperature (via live data with OBDeleven) with hood popped and single-digit temps to get me to safety where I finally had a phone signal and could wait for a tow truck someplace warm. Again, I do not recommend anyone else do this unless your safety is at stake and you mildly know what you're doing because chances are YOU WILL blow your motor.

Your Answer:

Audi A4 Experts

  • #1
  • #2
  • #3
View All

Find great deals from top-rated dealers


Related Models For Sale

Used BMW 3 Series
64 Great Deals out of 1,647 listings starting at $2,500
Used Audi A6
6 Great Deals out of 154 listings starting at $1,800
Used Audi A5
6 Great Deals out of 159 listings starting at $7,999
Used Audi S4
4 Great Deals out of 99 listings starting at $6,995
Used Audi A3
13 Great Deals out of 322 listings starting at $2,499
Used Mercedes-Benz C-Class
80 Great Deals out of 1,698 listings starting at $2,995
Used Honda Accord
43 Great Deals out of 1,784 listings starting at $100
Used Audi Q5
36 Great Deals out of 647 listings starting at $8,499
Used BMW 5 Series
25 Great Deals out of 456 listings starting at $2,995
Used Dodge Charger
28 Great Deals out of 598 listings starting at $1,999
Used Mercedes-Benz E-Class
20 Great Deals out of 541 listings starting at $4,895
Used Ford Mustang
39 Great Deals out of 1,074 listings starting at $6,890
Used Audi A8
3 Great Deals out of 37 listings starting at $7,000

Used Cars for Sale

2020 Audi A4 For Sale
106 listings starting at $48,080
2019 Audi A4 For Sale
64 listings starting at $31,898
2018 Audi A4 For Sale
3 Great Deals out of 36 listings starting at $24,995
2017 Audi A4 For Sale
9 Great Deals out of 189 listings starting at $18,290

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.