Question about 1999 Audi A6

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Have a 1998 A6. the ABS light come on,then the onboard computer starts showing a oil Pressure Fault & a ABS System Fault. The rev counter does not work . Also itgets stuck in a single gear , i think 4th. Thought it could be a dash board fault so have had this removed and checked all OKay. Also when the bonboard comuter has been hooked up it says that ther is no fault. Every think was working fine until I went up & over a long and steep hill. Lot of braking. Thanks if anyone can help

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Posted on Jan 02, 2017

TLRogue
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SOURCE: audi a6 on board computer reading faults

i would check charging voltage when this happens. The voltage at the battery should be around 14 volts engine running. If there is a drop in voltage, this can affect the vehicle control units, bringing on warning lights. Check it at tickover and at a higher rpm, if there is a significant difference say 3 volts, then replace the alternator.

TL

Posted on Jan 25, 2009

  • 1 Answer

SOURCE: AUDI A6 WONT START ON KEY BUT WILL ON TOW - FAULT

i have audi a6 2005 ,i turn the key to start noting happen, the lights on the dash does not come on, i checked the battery is good, when the key is on on position the stearing wheel is not unlocked

Posted on Dec 22, 2009

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