ABS UNIT

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Brown
Posts: 3
Joined: 23 Dec 2021, 14:42

ABS UNIT

Post by Brown »

Hello to everyone & thanks in advance.
new to Citroens & needing help with abs unit.
Needs a new unit & was wanting to know if I need exact match or if other units will work ?
Also are they plug n play or do they require programming once fitted .
Any info much appreciated.
Citroen coupe C4 Vtr+ Hdi S-A
2008
Part number i have on old unit is
9665915780
87ALE82702422
wheeler
Posts: 5392
Joined: 21 Sep 2002, 19:07
x 340

Re: ABS UNIT

Post by wheeler »

I take it you are going for a used one?
There are ESP & non ESP versions, You have to get the same type for starters.
Are there any other markings on the unit like Bosch 8.1 etc?
There are only a few things to program, Tyre size, gearbox type & cant remember what else but if you get one from the same spec of car then its plug & play.
Brown
Posts: 3
Joined: 23 Dec 2021, 14:42

Re: ABS UNIT

Post by Brown »

Hello n thanks for the info much appreciated.
Yes looking at used , car as got esp not sure what marking are on unit not taken it off yet,
By same spec do you mean engine size gearbox & esp or is there other things need to match . Assuming i find one off same spec does that mean part numbers don't need to match ? Thanks in advance
wheeler
Posts: 5392
Joined: 21 Sep 2002, 19:07
x 340

Re: ABS UNIT

Post by wheeler »

There a a couple of paramiters that need to be configured in the ABS ECU. One of them is the correct tyre size of the car, this is so the speedometer works correctly, the other is whether it is a manual or auto gearbox. I cant remember the other one possibly engine type. These can be changed no problem with diagnostics. It just means if you get one from the same spec of car this will already be configured.
There is no guarantee that different part numbers will work OK but that doesn't mean they wont work. Sometimes if you get a new replacement part number from the dealer its not the same part number as the original.
The main thing is if your car has ESP you must get one from another ESP model. ideally from the same year of car too.
Last edited by wheeler on 24 Dec 2021, 17:25, edited 1 time in total.
wheeler
Posts: 5392
Joined: 21 Sep 2002, 19:07
x 340

Re: ABS UNIT

Post by wheeler »

Just remembered as you have an ESP model you will need decent diagnostics anyway as you will need to re calibrate the steering angle sensor.
Brown
Posts: 3
Joined: 23 Dec 2021, 14:42

Re: ABS UNIT

Post by Brown »

Ordered a used one from same model / year /spec so fingers crossed.
Obviously be after hols now before I can get at it again.
My m8 got the diagnostic side of things covered.
Thanks again for the help.
No doubt I'll be back for more .
Hope you have a good Christmas
All the best for 2022