Category Archives: Range Rover Repairs

Workshop Tales

McDonald LR

Range Rover Cream Interior Kills BECMs. ish…

Workshop chatter is cut to a bare minimum as it’s inefficient and wasteful…

…although it does have its uses.

Over a boiling kettle the issue of Range Rover Beckhams was discussed.

Then the workshop-ingenue was slapped down viciously corrected; the Body Electrical Control Module or BECM is the all-important brain of the vehicle, and must be functioning correctly for the vehicle to run at all.

IT is responsible for:

  • Instrument pack
  • SRS (Airbag) Diagnostic Control Unit (DCU)
  • Selector lever display panel (Automatic transmission
  • vehicles only)
  • Engine compartment fusebox
  • Fuse 1 – Power supply
  • Fuse 4 – Power supply
  • Fuse 5 – Power supply
  • Cruise control ECU
  • Transfer box ECU
  •  Engine Control Module (ECM)
  • Electronic Automatic Transmission (EAT) ECU
  • Electronic Air Suspension (EAS) ECU
  • Center console switch pack
  • RH door outstation
  • LH door outstation
  • RH seat outstation
  • LH seat outstation
  • ICE (Radio) unit
  • Diagnostic Socket

Of course, if it should fail, you’ll see all kinds of problems, including but not limited to:

  • mis-operation of headlights
  • door locks
  • electric windows
  • fuel filler flap
  • indicators
  • sun roof
  • rear washers/wiper
  • fuse failure codes
  • engine won’t turn over

These faults may be intermittent.

For a fantastic article on the workings of the BECM, try’s Demistifying the BECM

There’s nothing a home mechanic can do to fix a BECM, but you can try to avoid trouble by buying dark-carpetted P38s.

I know, it sounded strange to me too, but it’s a little-discussed fact.

The lighter carpets featured on the Range Rover options list encouraged dirt and stains to hitch a ride, necessitating a motivated schedule of interior cleaning. As the BECM is under the seat, next to where your feet are, it’s right in the firing line.

The more carpet Cleaner you use, the more moisture there is around the box, the greater the chance of degradation in the circuit boards.

So buy a P38 with dark carpets and you’ll have a much-reduced chance of BECM woes.

If you’ve got a P38 (brave little old you, well done) and you need anything at all for it, from the smallest washer to a brand new 4.6 V8 engine, give us a call or go to


McDonald 4x4 Timing Belts

Timing belts, so innocent-looking.

One of the spanner monkeys highly-qualified and -skilled workshop technicians was relating the tale of a damaged-repairable vehicle (all identifying details have been removed for fear of being sued mercilessly) which had had a fair old smack on the nose. Serious enough to write it off, but only for the sake of the insured value.

Parts had been ordered and fitted and all was well in the world until the key was turned and the engine refused to fire up.

Everything was tried, to no avail, and the word went out. Help was needed.

One phone call later, our chief spanner monkey highly-qualified and -skilled workshop technician was on the scene, tuning his ear to the engine’s sound.

Doesn’t sound right when you turn it over.


Have you checked the timing?

Why would we do that?

And lo, there were degrees of separation between where the belt should have been and where it was.

Not so bad a knock you’d have thought the motor had been affected, but still enough to move the belt.


If you’ve a need for Tender Loving Care for your car, give us a call or go to

Written by Rupert Astbury.