Jan 17, 2014. #1. Hi guys. I have been experiencing some annoying rough/erratic idles on cold engine starts. RPMs are jumping between 400 and 1000 until the needle settles at 800 after 30-40sec (see video). Engine/exhaust sound like a tractor during these first seconds and engine seems to stall almost. This only happens when the engine is Audi: MK1 TT MK2 TT A3 B5 A4 B6 A4 B7 A4 B8 A4. The 7 Most Common Volkswagen 1.8t Engine Problems. Oil sludge buildup; Ignition coil pack failure; your engine may not start. The reason these can fail is normal wear and tear or faulty coil packs. With that said, you will probably only experience these failing once or twice in your vehicle Portland, OR. My Photo Gallery: 0. My noise is a groan - similar to a dry door hinge on an old pickup truck. It only happens when turning the steering wheel, and I can only hear it when stopped, or at extremely low speeds (walking speed). From the descriptions above, I'm leaning towards something in the steering system. I've run into a problem since yesterday intermittently whereby my car will crank and crank but not start. Randomly it will start, and randomly it won't. It's happened about 3/10 starts since yesterday, no new codes are showing (except G28 speed sensor), I was told by a friend it may be electrical and looking online it looks like maybe a relay Over the last week my car has been misfiring on cold starts and idling around 1200rpm before settling down. Once warm it'll start up smooth every time. I had the coilpacks replaced, open recall from Audi, and also the valve cover gasket. There was some oil found on the coilpack when it was pulled out. The car ran fine for a day or so and went back to the rough idle and misfire. 07-10 - Signal too Low - Intermittent. 01317 - Control Module in Instrument Cluster (J285) 49-10 - No Communications - Intermittent. 00474 - Control Module for Immobilizer. 49-10 - No Communications - Intermittent. 01330 - Central Control Module for Central Convenience (J393) 79-00 - Please Check Fault Codes. KE3C.

audi a4 b7 not starting