Hi guys,
Started the car this morning and I have a whole load of caution lights on the instruments. Air suspension has dropped down to low and won’t raise, HDC is saying not available and a park brake fault. Don’t worry about the engine management light, that’s been on for ages and is an EGR fault that is a side issue. Any thoughts gratefully received?

Last edited by Gas-guzzler on Tue Oct 11 2022 5:03pm. Edited 2 times in total

Battery in good condition?. 2006 2.7 TDV6 HSE in Cairns Blue.

Battery seems ok. I’d read that a bad battery can cause these symptoms so gave it a full charge and same lights still come on. I’ll get a battery health check done to see. Thanks for the suggestion.
Could a brake wear sensor or faulty ABS sensor cause these issues?
Thanks

Following a bit of research I’ve decided to order a brake light switch as it’s a cheap fix stating point. The brake lights do work as they should and the EPB releases with the button when I press the brake pedal, also, I can hear the solenoid click to enable to auto gear-shift to move out of park and neutral but thought it worth a shot.
Also, the transfer switch from Hi to Low gear ratio works so I guess the transfer module is ok? I’ll report back when I’ve fitted the new switch.
Thanks.

This is where you want to get the actual codes read instead of playing parts roulette. And just cause the engine fault has an old EGR code doesn’t mean new codes haven’t been added. That’s the problem with ignoring those kind of lights. Get the codes, do some diagnostics, then spend money on parts. 2011 RRS HSE Luxury 3.0 TDV6 Fuji White on Ebony/Ivory
Born and raised in So Cal. Moved to the UK in 2018 for a few years. Now in Poland and looking at moving back to the UK.

Agreed. You need a proper code read done. Trying to second guess it is going to waste time and money. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

get the codes read as it could be anything one sensor could be causing the others to play up

Agreed with the above - I've been here and got that T-shirt (as has everyone else, probably!)

I had a christmas tree of lights caused by CAN-bus failures and changed (in order of expense!):
The brake switch (which achieved nothing)
The whole engine ECU (because it looked like it had failed internal voltage regulation) which achieved nothing at a cost of £600
I was pretty close to sending the cluster off for repair as well..

Eventually I took it to a specialist.. one replacement fuel pump (incidental failure) and a wiring fault under the fuse box located and the problem was solved. Even including the labour to diagnose and the fuel pump it would have cost less than I'd spent so far "fault finding"! 2014 BMW 530d Touring, 2006 BMW 650i, 2018 Mini Cooper S

That’s all great advice. Thanks guys. So, I’ve bought an Autel AP200 diagnostic tool and it’s shown a left rear wheel speed sensor which I’ve ordered from euro car parts. Hopefully be fitting it tomorrow. I’ll post here results. Thanks again.

had same problem with mine abs sensor is easy to replace only a 10mm nut holding it in place

Thanks Karlos and to all who helped. Problem solved. I bought an Autel AP200 diagnostic tool which identified a fault with the rear left wheel speed sensor. Replaced that and all lights are now extinguished and car drives fine. Thanks again folks.

Excellent thanks for posting the fix  2006 2.7 TDV6 HSE in Cairns Blue.

glad it sorted out for you