audi engine problems

Ben Woodring

Asked by Mar 30, 2016 at 07:50 PM about the 1998 Audi A4 1.8T Quattro

Question type: Maintenance & Repair

Every time i start my 98 audi a4 1.8t it idles from 1
to .3 flutcuates bad and hen i give it gas its like it
wants to die . exhaust shoits out blacolk smoke
when it idles like that i cant even drive it someone
help please!

2 Answers


Your engine needs a cleaning. Your likely suspect is carbon build up in the engine, turbo or egr valve. try running some cleaner threw your oil before a oil change should clean a bit of the crap out. You should replace the spark plugs also since they are most likely due for a change regardless. (use bosch 4 point plugs they are the best) have the turbo checked by a garage to make sure its not clogged or falling apart as well. and check all the crank case hoses. They tend to get full of sludge after some time.


wouldn't hurt to clean out the throttler body as well

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