Audi A3 - Recent Questions, Troubleshooting & Support - Page 3

I recently tried the DIY service and repair manuals from a website and it actually helped me repair transmission problem in my jcb 3cx site-master. It would'nt move forward or reverse, engine was good both solenoids for forward and reverse worked, but still couldn't diagnose the problem. I don't have much technical knowledge but I just followed it step-wise, and now it works perfect! covers wiring, codes, diagrams, torque specs, PCV, everything got it from www.reliable-store.com

At this website www.reliable-store.com I found all complete guide,much better language, complete detail in 800+ pages, ..and they also have live chat for instant help feature

It's definitely a fuse keep looking

If the warning light is on, trouble codes are stored. Get the codes read and then you'll know

remove rear panel in boot to get to wiper motor. your will see a silver plate held by 6 small screws remove and clean micro switch with brake cleaner use sealer on plate and good to go / water gets into switch

check for low fuel pressure and injector failures ( dirty or ECM problems )

This is typical problem when AC Compressor starts to lock up and first makes a noise. then on overheating locks up and will stall the engine until something breaks either in the clutch or belt and it is free again to start engine. Thoroughly check you AC with/without belt and see if it rotates freely. I’m happy to assist further over the phone at https://www.6ya.com/expert/uttamjeet_2f3adc18600f8ede

Sounds like the point where it switches from Open Loop (equivalent to choke on carby cars) to Closed Loop.
In closed loop, the engine switches to using all the engine sensors to maximise engine efficiency.

The behaviour your describing is most likely an engine issue.
I'm thinking it may be the MAF sensor.

On conventional automatic transmissions on modern cars, the ECU and TCU work together to optimise shifts in the transmission. To do this smoothly, the ECU needs to know how much torque the engine is producing at any given moment. It uses the MAF for this.
An out of spec MAF will not throw a code unless it fails completely. It merely gives incorrect air flow readings which leads to incorrect fueling and rough shifts.

You may also be noticing higher fuel consumption, though it won't necessarily be noticeable.

sound more like an alternator problem

Crankshaft position sensor maybe?

You didn't mention the obvious, fuses. In many euro cars there are multiple fuses for each light circuit, side to side, and inside to outside, so check fuses, even if it looks good, they can still be bad. Switch with same amp and color fuse with any other same specs to narrow it down. Fuses can be tricky believe it or not, and I can't tell you how many times people overlook the obvious, even mechanics. Good luck, FREE-BUSINESSES.com