MarTT

Throwing code
01279 - Longitudinal Acceleration Sensor (G251)
27-10 - Implausible Signal - Intermittent

for the past few weeks, ABS and ESP lights come on in cluster. Dealer replaced today under CPO warranty ($50). It was P/N 1J0 907 651 A and was located behind the glove box as shown in pic below. Be aware, searching this topic reveals conflicting advice, looks like the sensors are in different locations depending on model year. According to my dealer tech, and the Bentley manual, here are the locations for this sensor:

Longitudinal Acceleration Sensor (G251) Through model year 2002 (this is where it was on my 2001):
<img src="http://images16.fotki.com/v286/photos/4/41970/1982850/longaccelsensorG251-vi.gif">

Longitudinal Acceleration Sensor (G251) From model year 2002:
<img src="http://images2.fotki.com/v292/photos/4/41970/1982850/longaccelsensorG2512002-vi.gif">

Cruzad3r

you add this to the faq? you should

TTagz

more conflicts, my 2001 had it behind the drivers side dash

MarTT

Done.

MarTT

damn those Audi engineers hiding sensors all over the place! j/k

Blue TTop

Another good writeup!

audi_519

hi, is there anyway you can repost those pic of the location on G251 on 2000 tt? i don't seem to be able to open it. I have replacing mine and need to locate it first..i have a 2000 tt 1.8t quattro 132kw. thanx.