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Hi Guys!

Today I finally started my rs4 after 6 months of winter. Everything went smooth, I drove 2 minutes to the gas station to fill up the tank. Since the battery was a bit weak, I left the car running while I got gas, yes its stupid I know.. Anyway, when I got back in the car the EPC light was on. The engine ran smoothly and the idle was normal, but it was limited to 2.5k rpms. I figured it has to do with me filling up gas with the engine running. I tried shutting it off and on but it was still there. Now I have just parked it and dont want to drive it anymore with the EPC light on.

Do you think it is something else? Should i drive it carefully to the mechanics right away? Any other ideas I should try myself?

Also the ESP light was on all the time since I first started it. That doesnt feel too serious, but it needs to be fixed.

//Jacob

Have to get it scanned really to find out otherwise it's a guessing game. Do you know anybody with VCDS?

Alex

Hey! Today I drove the car to my mechanic and the EPC warning was gone this morning when I started it, and also the traction-light. He scanned it anyway, and he only found one "unknown error code" that was deleted. The car runs perfectly.

I guess the misstake I made when getting gas while the car was running just solved itself during the night, there is a pressure/vacuum in the tank that got restored maybe? Also my battery was weak so that could cause some issues like the traction warning. Anyways, now I hope to get a problem free summer and alot of fun miles

//Jacob

A low battery voltage can bring on all sorts of random codes.

The 'unknown error' was probably from your mechanic not having the correct diagnostic tool for your car - the generic readers can't read all the blocks correctly so you will never know what the problem was.