I am having issues with my 2011 Audi S5 dsg 7 spd transmission MSE Code transmission: I am getting the dreaded "gear box malfunction"code, as well as the "TPMS" light code that comes on shortly before or after the gearbox malfunction code. Also the TPMS and a third code P0750. The codes normally come on shortly after one another, typically when the car is cold. However also when the car engine is warm or if I have to stop or idle for more than a minute or so at a stoplight the codes will come on.

I was also given this code via Audi diagnostic. I wrote word for word what was stated on the diagnostic report : Fault code P17D400 valve 3 in partial transmission 1 mechanical malfunction. Trying to figure out whether this is mechatronic unit or valve body unit issue, or if i need an entire transmission. I have hard shifts, sometimes no reverse, my car will go into limp mode with the top speed being 50mph. If I have to drive slow or in stop and go traffic the codes will come on. However If i can turn the car off and restart the car i can get reverse gear, or If i am able to drive and quickly accelerate sometimes i can get the car to drive normally and can get onto the highway and the car drives normal once on the highway.

Audi has many complaints on the Audi forums of people with what would be considered low mileage cars with 13k transmission estimates, this seems prevalent in the S4, S5, and many other models based on complaints.

I am done with Audi. I was caught with an Audi A4 Avant wagon that had the oil consumption issues, and then the timing chain tensioners failed and caused catastrophic engine failure resulting in an estimate of 14k from Audi. I bought a used engine to the tune of 6500.00 and traded the damn thing in at an Audi dealership to only buy the S5 and now transmission issues.

Frankly i feel like wrapping the vehicle with a lemon vinyl with signs that states Audi is a scam company selling faulty products and parking the damn thing somewhere close to the dealerships....

After being charged $700 at the Audi dealership to "tell me the problem" the result is its a faulty transmission, they knew it didn't report it anywhere. Because I didnt buy it directly from a Audi, trying to defer the blame that it is wear and tear but they are willing to negotiate a price since they VALUE ME AS A CUSTOMER. I'm receiving communications regarding warranty blah blah. But a manufacturers problem is still a manufacturing problem. If I would have paid full price for it and not done the research and complain they would have said nothing. ZILCh

When in traffic in 2nd gear, when I start to accelerate, the car feels like it changes gear automatically and almost feels like it wants to stall before jerking and pulling off. The actual gear does not change though.

In peak hour traffic is very annoying and to think this is a high performance car and most expensive and luxurious one I have eve purchased. I expect comfort when driving, but whe in slow traffic, the drive is VERY uncomfortable and frustrating.

It has been to the same Audi dealer 4 times and the problem is only fixed temporarily and then revers back to its usual habit.

I purchased the car bring new in the 1 st week of January and started noticing the problem from about 500km. I thought the engine was just running in so I only reported it officially at 1000km. I have now driven it for 7000 and still the problem cannot be fixed.

The technician struggle to replicate the problem but when I drive it all the time, the problem is there.

What do I do?