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A6 Quattro

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I have 05 audi a 6 Quattro 4.2. I sprayed the engine off one afternoon. Now I'm getting primary/ secondary circuit malfunction sho
This is a common problem with the Audi models. Generally one of the advantages to having coil packs instead of a distributor is that they are a little more water resistant, however this is a known issue with Audi in...
Engine burning oil
The dealer should have performed an oil consumption test if this was your stated concern to them. Audi's published allowable standard for oil consumption is up to 1 quart per every 1,200 miles. You didn't say how much your car...
Death in the A/C
Hello, thanks for writing in about your Audi A6 Quattro. You should remove the A/C blower motor and see if a mouse or rat got into the A/C system if the smell is as bad as you're describing. They can...
Engine is leaking coolant on the top of the engine
This sounds like potentially a blown head gasket unfortunately. I would definitely not start or drive the car any longer until having it checked by a mechanic. When this happens, the gasket between the cylinder head and the engine block...
My front signal lights are out and I want to know where the signal relay location is on my car
The hazard light box is the correct part. When looking at the wiring diagram, the front and rear turn signals go through the hazard light box. If you operate the 4 way flashers you should see the front and rear...
Are there two timing belts in the Audi A6 engine?
The timing belt drives the intake cams on both sides of the engine. There is just one belt. The intake and exhaust cams are connected by a small chain and generally do not need to be replaced. However when replacing...
Having trouble finding the low pressure valve to put the freon in.
If you follow the large line that goes into the firewall connection to the evaporator in the engine compartment, you will see the high pressure connection on the small line, and low side connection on the right, on the larger...
Misfire on cylinders 1&4
It sounds like it could be the harness and simply disturbing it by swapping connectors eliminated cylinder #1 from misfiring, for now. Having owned a few VAG products and having many friends with them, you might want to try a...
How to take starter off?
Hi there! Prior to the turn of the century, replacing a starter on most vehicles was a rather simple process. However, as engine technology has evolved, and more electronic sensors added, trying to remove a starter without removing multiple ancillary...
Car floods, have to pull fuel pump fuse to start
Hello. If your car is throwing over 20 codes, then I would stop driving the vehicle and have it serviced as soon as possible. That many codes at once is a potential indicator of a serious issue, even if the...
What outher audi seats will bolt up an fit in my car
Hello. The main concern would be the compatibility of any sensors (e.g., air bag) that might be integral to the seat as well as the compatibility of the power seat controls, plugs and so forth. There are several way to...
P0421 comes up on scan. What is the likely culprit
Hello. When you get the P0421 code, it usually means that you have a failing catalytic converter. It is very common for converters to fail on this vehicle over time. Most of the time I use a scan tool to...
My car is being serviced and the mechanic just advised me that my brake pedal goes all the way to the floor,
Hey there. You may have a brake leak or be low on brake fluid. However, if you are low on fluid, you may have a leak. Brake fluid does not go anywhere therefore is should never get low or become...
Transmission indicator on the dash board does not point to the current position, plus the Tiptronic gear does not always work.
Hello. The issues you are experiencing can be caused by a variety of issues. It may be possible that there is some sort of sensor or computer issue. In certain cases a faulty transmission switch or shift solenoid will cause...
Engine problems
A rattling sound can be caused by a sluggish camshaft adjusting unit. If the adjusting unit is not adjusting quickly it can also cause the RPM issue as well. A sluggish camshaft adjusting unit can generate faults in the engine...
Brakes are squeaking
Yes, brake pads are no longer made of asbestos based on the possibility of exposure and possible development of mesothelioma. They have been replaced by several different types of material. Common materials are organic, metallic, and ceramic. Organic are great...
ABS and Brake lights come on while I'm driving
This could be an issue in the ABS control unit. Faults need to read out in order to determine if the problem lies in the ABS unit or if it is a sensor or valve issue. You may need to...
Gauge cluster and radio keep turning off
Sounds like it could possibly be a processing issue in the instrument cluster. You may need to contact a dealer for a replacement.
My audi smells like gasoline I read it could be a clogged fuel filter my mechanic wants to replace a plug on my fuel pump
What your mechanic says sounds more likely. There is no gasoline flowing to the turbocharger, so a flange or gasket leak is unlikely to be the cause. A leaking turbo flange would give you an exhaust leak and any odor...
When does cam belt need changing? It's a V6 2.8L Quattro though
Hi. Your car is running a timing chain and the timing chain is not a part that has to be replaced according to Audi. This is a good thing because most of the time the timing chain last for the...

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