BECM Replacement

Hi all,

Have a question ref BECM replacement. My 2008 3.5l Vogue appears to have a BECM fault from various signs and according to the nice chap at the garage. He's replaced them in other vehicles (not LR/RRs) and tells me that it basically bricks the vehicle.

I've done some digging and seem to find contradictory info.

Is it possible to purchase a second hand one and 'plug and play'?
If not, what would I need to get it up and running?
How much would a replacement and setting up be from a LR dealer?

Any advice greatly appreciated.

Many thanks,

ML

Monoloco said:

Hi all,

Have a question ref BECM replacement. My 2008 3.5l Vogue appears to have a BECM fault from various signs and according to the nice chap at the garage. He's replaced them in other vehicles (not LR/RRs) and tells me that it basically bricks the vehicle.

I've done some digging and seem to find contradictory info.

Is it possible to purchase a second hand one and 'plug and play'?
If not, what would I need to get it up and running?
How much would a replacement and setting up be from a LR dealer?

Any advice greatly appreciated.

Many thanks,

ML

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In my experience, the BECM rarely actually fails, most problems are due to damp which may get inside the unit and corroded connectors. The main fuse box also causes problems for which the BECM often gets the blame.
Swapping the BECM is not plug & play, it needs setting up with diagnostics. Second hand is no problem, I doubt you could buy a new one, if you could it would cost more than you could sell your car for.
Is the carpet or underlay in the drivers footwell damp or wet?
What are the various signs of problems you mention?
If the BECM is definitely at fault, Rick the Pick (LZ Member) in Brighton will be able to repair it

Many thanks for your reply, very much appreciated.

The car died basically. The check engine light came on, but it was still working. Steering got a little heavy and then it just died en route to the garage.
They looked at it and it had around 99 faults, however some were none existent I gather, saying that some things weren't working when they clearly were e.g. central locking etc.

The nice chap hasn't been able to work out what the issue is exactly, hopefully tomorrow, however as it's all alerting via the BECM, that was one of the options for the large amount of faults that came up.

The carpet isn't damp when I last checked. I'll pop round shortly and check for sure.

What does the setting up with diagnostics involve? Is that a main dealership thing or something that most garages shouold have?

Many thanks again for your help.

If the car died, I would be looking at the alternator, battery and connections, also the fuse box is known to fail. The BECM does not have a fault memory, so where the 99 faults came from is interesting. It certainly does not sound like the BECM at fault.
Steering getting heavy is usually serpentine belt failure which would fit in with the engine dying from lack of volts as belt failure would also stop the alternator.
Garages always try to blame the BECM when they don't have a clue what's wrong as they can charge a lot for the BECM.
Nanocom can reconfigure a second hand BECM, but I would not think about doing that at this stage.

If it's a 2008 then it could be any ECU causing Can-Bus issues, and creating fake faults, even on modules that are working. It also depends if the faults are "present" or "stored". Old stored faults should have been cleared when they were fixed. Another factor is non-LR diagnostic tools may give false details.

pwood999 said:

If it's a 2008 then it could be any ECU causing Can-Bus issues, and creating fake faults, even on modules that are working. It also depends if the faults are "present" or "stored". Old stored faults should have been cleared when they were fixed. Another factor is non-LR diagnostic tools may give false details.

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I missed the 2008 Just saw the 3.5i so forget all I said if it's an L322.

Equally I didn’t know there’s a 2008 3.5i ??

Data probably still half right battery related and your man Rick the pick +1 on becm look up Callrover on google same company

Everyone,

I am so grateful for your replies, very much appreciated. Whilst I trust the garage it is currently in, I think using your advice is a cracking steer to hopefully speed up the diagnosis.
I'll pass on the above and will hopefully have some more info in the next two days which I'll mug my guy for information and post it on here.

Thanks again,

ML

Would be useful to know correct car type ? 2008 RR did not have 3.5L engine option ?

pwood999 said:

Would be useful to know correct car type ? 2008 RR did not have 3.5L engine option ?

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Could be 3.6 tdv8.

Apologies, it is 3.6 - what's .1l between afficianados.

Monoloco said:

Apologies, it is 3.6 - what's .1l between afficianados.

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The difference between a P38 and a more modern Range Rover.

Most likely not the BCM causing the issue, but it's flagging both real & fake faults due to something else such as engine ECU. Far too many interlinks between the ECU's on later cars.

If the garage thinks replacing BCM on various care "bricks" the vehicle, then take the car somewhere else because they don't know how to do ECU replacements, or diagnose properly.