ESP and TPMS lights permanently on - Leon FR PD170 2008

[soholo1]

Hello all,

First post here!

2 weeks into owning my Leon FR, the ESP and TPMS light have come on and wont go away. I managed to get it scanned by a friend with VCDS and its reading the following codes:

01279 - Longitudinal Acceleration Sensor (G251)
005 - No or incorrect basic setting

01279 - Longitudinal Acceleration Sensor (G251)
012 - Electrical Fault in Circuit

After much searching, i assume its a sensor gone bad, but cant seem to locate much information regarding the sensor location on the Leon Mk2 (loads of threads for audi). I removed the glove box to inspect any sensors but couldnt find any.

Any help or pointers in the right direction would be much appreciated! Currently going in circles

Thanks

 

[Woody_72]

Just had a Google and I'd try behind the glove box or the lower dash under the steering wheel. It looks to be about an inch cubed in size, and possibly with a gold anodised steel band around it ?.

 

[Rusty2k]

Do you have the full VCDS scan you could post? The ABS units changed during 2008.

Early ones have a separate sensor module under the passenger seat. Later ones have the sensor unit built into the ABS unit.

 

[soholo1]

Just had a Google and I'd try behind the glove box or the lower dash under the steering wheel. It looks to be about an inch cubed in size, and possibly with a gold anodised steel band around it ?.

Thanks for the reply, i believe thats the case for older models as i stripped out the globebox and checked under the steering wheel with nothing visible unfortunately

 

[soholo1]

Do you have the full VCDS scan you could post? The ABS units changed during 2008.

Early ones have a separate sensor module under the passenger seat. Later ones have the sensor unit built into the ABS unit.

Thanks for the reply, i will try to attach the full report. The car is a 58 plate, i have also read elsewhere that the G251 sensor could be located under the drivers or passenger seat. Fingers crossed that its not the full abs unit!

 

[soholo1]

I have also been informed that the car has an outstanding recall '
Recall number R/2017/216 (R/2017/216 - ABS/ESC SYSTEM MAY FAIL)

Could this be related?

 

[Rusty2k]

As far as I remember that recall is for something different. There's a fault that can occur on some ABS units but the software on the unit cannot detect it. The recall is to apply a software update that can detect the fault and then to replace the unit if the new fault is then showing.