Questions tagged [a4]

Use this tag for questions about the Audi A4 sedan.

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Shaking/Vibration in steering wheel & vehicle

I drive a 2006 Audi A4 Quattro 2.0L Turbo vehicle. I bought off a private seller about 8 months ago. The shaking started randomly about 3 months ago. At first, the shaking was only felt in the ...
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3 votes
0 answers
48 views

How to find out if your ECU has been reflashed?

Vehicle 2010 Audi A4 Quattro, 2.0L TFSI engine, automatic transmission, 180,000 km. Recent History Friend bought this car used 2 months ago from a private party. The check engine light comes on with a ...
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0 answers
29 views

AUDI A4 1.8T automatic 2008

So this is my first time here as I've only just bought a second hand Audi A4 On purchase I was made aware the car had new bearings and an oil pump replaced and that the car only starts up on 2nd or ...
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0 votes
2 answers
38 views

Handbrake problem

The handbrake seems too loose, it used to be normal when you pull it up, you can feel the force from the brake, but it suddenly becomes very loose, and I could literally pull it all the way up. But ...
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0 votes
1 answer
74 views

Engine randomly over heated and emptied all coolant

So I just picked up an 03 Audi A4 1.8 T Quattro and was driving it around a bit trying to get used to manual. I had been driving it for the better half of two days, took it up to my mechanic buddy ...
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1 vote
1 answer
45 views

Which should I fix first?

So I have two problems but money for only one of them. First I have to replace pcv valve hose or second Camshaft position sensor so which is more important and which one should i fix first? Car-Audi ...
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2 votes
0 answers
105 views

battery coding Audi A4 2.0 TDI (B8, 2008)

I bought a new battery for my car (exide ea1000) and I installed it. the battery works, but I heard it needs coding. knowing that German cars are fairly sensible to this kind of things, it makes a lot ...
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  • 21
0 votes
1 answer
134 views

Vehicle Ride Height

Car is 2008 Audi A4 2.0T S Line. It appears to sit lower than other cars (standard edition, not S Line) that I've seen around town. I want to change out shocks and struts as I suspect they are ...
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1 vote
0 answers
89 views

Chatter from steering rack in a specific condition

2008 Audi A4 2.0T. Specific condition is when I back into my driveway, I'm driving down the street, turn the wheel to the left and line the car up. Then shift to reverse and cut the wheels right ...
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1 vote
0 answers
54 views

Hard to start push key ignition

My car is a Audi A4 TDI 2.0 manual 2008. It is hard to start. When I push in the key and put my foot on the clutch peddle it won't start. When I push in the key, put my foot on the brake peddle, and ...
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  • 11
2 votes
0 answers
378 views

Audi front axle buzzing/humming sound

I have this weird buzzing sound with my 2008 Audi A4 (B8) coming - probably - from the front axle. First I thought it was the engine or exhaust making this sound, but the sound is not dependent on ...
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2 votes
1 answer
197 views

Can a tune eliminate the need to avoid redlining a cold engine?

As with any car, you'll want to be a little gentle right off the bat when driving a cold car. Not granny driving, but not hooligan either - to let the engine warm up at least to some degree. My car ...
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  • 293
3 votes
0 answers
2k views

Reverse gear in Auto transmission not properly engaging after pushing car

I have a 1997 Audi A4 quattro that was not driven for a while, It was given to me by a friend who emigrated. All gears were working fine however the battery was flat and the car was parked right up to ...
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  • 31
2 votes
2 answers
429 views

no electrical power to my audi

someone tried to hook up after market headlights to my Audi A4 1.8 turbo, 2001 model. they bridged a wire and as such i lost power in my windows, wipers, horn,indicators, door locks etc. which ...
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  • 21
3 votes
4 answers
18k views

Hood sensor latch faulty

I have a Audi A4 B8 2009 model. I am running with a very stupid problem causing a great amount of pain. So, just a few weeks back, the "front hood (bonnet) is open" indication started showing up on ...
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  • 133
4 votes
0 answers
53 views

What are cam slide adjusters?

I am replacing the timing chains and guides. All the data refers to the use of cam pins. Other sources say these pins are used for basic setting of cam slide adjuster? The car is an Audi A4 2.0 Turbo ...
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  • 41
3 votes
2 answers
2k views

Audi A4 tick / scratching noise, parking brake fault

So I picked up my 2011 Audi A4 Avant last week, and it's been an extremely good car. The car has followed service intervals, and has current gone about 86,000 km ≈ 53,000 miles. The other day, I got ...
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  • 293
1 vote
0 answers
596 views

2003 Audi A4 1.9 TDI stalls when driving

My Audi A4 (2003, 1.9 TDI AVF engine, manual) sometimes decides to stall while driving, so far four times this winter. Engine will start successfully after a minute or two, otherwise I can hear it try ...
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3 votes
1 answer
5k views

Push back /Obstruction feeling while braking

I have 2014 Audi A4 and recently I drove on 1 inch snow and on sleet. I noticed when I tried to brake gently, I felt like something is pushing me back for a sec or two. I didn't feel anything while ...
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  • 133
5 votes
1 answer
873 views

AUDI A4 2009 1.8 TFSI engine compatibility (swapping engines)

I have a 2009 A4 1.8 TFSI Basically, I need a new engine. On searching I have been told a CABA Engine will fit even though my engine is CDHA. I have been offered two CABA engines but can't find any ...
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2 votes
0 answers
54 views

Cracks on both front and back differential - Normal?

AUDI A4 2012 2TFSI QUATTRO - I took my car into a service centre for a check and was told both differentials have got have cracks. Car is still on motor plan, took it into Audi to be replaced and was ...
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1 vote
1 answer
2k views

Audi A4 (B8) safe to drive with vacuum leak?

Have a 2009 Audi A4 which has been running rough with the check engine light on, especially at idle for two days. The dealer described it as a large vacuum leak, and estimated ~$1000 to replace the ...
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  • 113
4 votes
3 answers
2k views

08 Audi A4 B7 2.0T DTC P0503 speed sensor erractic/high

I just finished reinstalling the intake manifold after cleaning the valves and went to start the car. It starts for about 2 seconds before shutting itself down. It throws 6 pending codes. P0503 - ...
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6 votes
1 answer
2k views

2000 Audi A4 1.6 weak motor power

Just few days before I wanted to take Audi A4 B5 1.6 (year: 2000) to 'preventive' service. I've started the car normally, only the motor sound was very weird. So I tried to make a test drive. I couldn'...
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  • 213
2 votes
1 answer
2k views

Audi A4 (B8) Whine

I've got a 1.8 TFSI A4, and it's making a whining noise. It's audible if you rev the engine, and when driving. Very pronounced at lower speeds. If you depress the clutch, it stops. But, if you rev ...
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3 votes
1 answer
2k views

Audi A4 B5 (1995) climate control/heater/blower problem

The climate control was nuts all the time since I bought the car few years ago. I have the air conditioning liquid filled. The mechanics said, the pipes are all in good shape, but something is wrong, ...
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  • 131
6 votes
2 answers
10k views

RPM fluctuation when maintaining speed in high gear

I recently got an oil change on my 2008 Audi A4 Quattro. Now I notice that when I am cruising in 3rd, 4th, or 5th gear (but not 6th), and I am at about 1200 RPM, the tachometer is not stable. The ...
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10 votes
5 answers
33k views

Should rotors with rust on the rims but not the faces be replaced along with the pads?

I have an Audi A4 with approximately 35k miles. My dealership has recommended that I replace both the brake pads and the rotors and helpfully forwarded a picture to me of the rotors indicating the ...
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  • 101
4 votes
2 answers
26k views

Audi A4 2007 2.0T boosts but poor performance, fuel economy

My 80,000 mile 2.0TFSI Turbo Audi has lost a lot of performance but produces no check-engine-light (CEL) or codes. One month ago an independent garage looked at it and did $2200 of work including ...