'06 A6 Transmission Problems

[calaher]

Car is just a bit over 44K miles. Driving home last night and Check Engine Light comes on and stays on. Pulled over and stopped (kept engine running) and read manual - said something about possible emission control problem and to have it checked soon. Also checked gas cap and reseated because I did just fill up about 20 minutes prior. No other warning lights or sounds. Put car in gear to head home and seemed like it was sluggish, like it was starting on 2nd or 3rd gear. Then quickly noticed that it was stuck on the one gear and wasn't shifting at all. At 40 mph, was running at ~2,000 rpm. Got off the highway and took back roads, keeping rpm down below 3,000. Car had been trouble-free and serviced on schedule. Last service was 2 months ago to correct the rear end clunk and dealer did the differential fluid TSB. He said no codes came up so not likely a tranny problem.

Any ideas on the cause? Is there anything in the DIC that I can check? Do I have a hosed tranny? BTW, I have GMPP Major Guard and will take to dealer this comming week but wanted to see if I can get educated first. Thanks in advance for the help...

 

[c4c5specialist]

HI there,

There will be a diagnostic trouble code and it will have a relation to what your dealing with.

The fact that you only had one range in your transmission indicates it defaulted to protect itself.

Mostly, programming is the first course of action.

Its possible you may also have debris in the valve body creating the issue.

Accurate diagnostics is key to an effective repair.

Allthebest, c4c5

 

[tim414]

HI there,

There will be a diagnostic trouble code and it will have a relation to what your dealing with.

The fact that you only had one range in your transmission indicates it defaulted to protect itself.

Mostly, programming is the first course of action.

Its possible you may also have debris in the valve body creating the issue.

Accurate diagnostics is key to an effective repair.

Allthebest, c4c5

This means use your GMPP and take it in so it can be checked. These cars are not as simple as cars of the past. best luck

 

[calaher]

UPDATE: Got it back from dealer today. Codes were P0700 and P1825. Transmission range switch intermittent open circuit. Replaced shift valve range switch. Found no burning smell in transmission oil. Told them to go ahead and replace fluids anyway. Seemed OK on drive home. Will keep an eye on it until I regain confidence that all is well again...