On my x6 the main engine relay latched in occasionally giving this battery discharge fault

After I decided to do any work that is required on my x6m by myself, it was interesting to note the appalling work that had been carried out by a main dealer after they had removed the engine.
This was after they had dropped an injector tip into a cylinder while changing said injector.
Told me the ...

pvr wrote: Tue Mar 04, 2025 6:31 pm Yes, I can see I can get Pirelli again and that is the only * rated. I just didn’t like the wearing on it, they lasted 15k miles only

If you want to play you have to pay
My X6M is about the same

If it was not reggening it would be blocked solid within a few 1000 miles..Its hard to spot a regen sometimes it holds a higher gear but its not obvious though if you get out mid regeneration you can feel the heat from the back of the car and slight burning smell at times I find.
The dpf could be ...

Cost was £400. That was with a 25% discount as one of the xmas offers. It was originally £350 with a 3 year ceramic protection but I opted for the 5 year protection which should have been another £100 but he did it for £50. He had the car for 4 days.

I see your profile says Sunderland, are you ...

Chri5v8 wrote: Mon Feb 03, 2025 8:58 am

IanP wrote: Mon Feb 03, 2025 7:15 am I loved mine until the cam chain tensioner went...

Oh great that’s something to look forward to

Unfortunately it was fairly common. Bmw plastics that don't like hot oil

I loved mine until the cam chain tensioner went...

On my X6 this alarm came up regularly if the car hadn't been used fir a couple of days. Turned out that one charge air cooler pump was continually running (pump fault) and the main engine relay was staying on .
Only way to find those problems was with live diagnostics.

I've just done this on my E71 after changing the air bags. I have access to dealer level gear but I would have thought any indy could do the job. Only takes a few minutes.

Check the banjo bolt and oil feed lines are completely clear.

Not the right section of the forum I know but my x6m does between 10 and 25 mpg

Mine had the nasty habit of re-engaging even when it was off

Sounds like a system leak. Any good air con company should be able to put fluorescent dye into the system to find any problems before putting expensive gas back in

Mine used to randomly drop or stay up for days. Problem is if it has a slow leak then the pump will be running a lot and it's not really designed for that.
As for changing one or both, if one has a leak and they are both the same age, then I would doubt the second one will be far behind in failing....