Ta, I thought the rolling resistance would only be affected by the tyre depth not width. IIRC they should be 265/40/20, mines had replaced with 275/40/20. I was looking for a second set of wheels anyway as I intend at some point having these refurbed
Not sure on different codings as not really looked into that.
Ref troubleshooting, this is where I lost my rag a bit with them….. they’ve basically plugged in, not found faults, visually inspected and not found anything, test driven and not has a clue how they should drive……
Quote:
Originally Posted by Ronin
Tyre width does affect the rolling resistance.
As part of the fault finding process I would try original OEM tyre/alloy sizes and compare to a known good working car with the same setup.
Additionally, just like D2 has different springs for cars with different wheels/equipment/body, different suspension codings must exist for air suspension of a D4?
What were the troubleshooting steps of the garages which attempted diagnosis?
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2021 Q7 4M, 3.0tfsi MHEV Black Edition
2002 D2 S8, Aqua Blue Pearl, original bar FE alloys and miltek
1997 D2 PF 4.2q, silver, Sport on roughly 90k and counting…. ** FOR SALE **
1990 2.3 20v 7a Coupe Quattro
**SOLD** 1996 2.6 v6 cabriolet, Isis red metallic
**SOLD** 2014 D4, FL 3.0tdi, phantom black, sport exec lwb
**DEAD  ** 2009 D3, 3.0tdi sport, black
Had a few Audis over the years, mostly early stuff, newest was a D3 prior to my D4, nothing much kept me smitten with other marques so I floated about a bit from one thing to another until that four ring lure caught hold
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