............But "The rear brake pads are 70% worn. We'll call you in January". You can call, Sunshine, but you won't be doing the job - if it even needs doing by then. Call me suspicious, but the last time the rear pads were changed was the same time as the fronts were done. Do F25s reall...

If your getting the failsafe for trans, that points to a low battery voltage in most cases, as for the maf if it runs near perfect with it disconnected thats because its running on default settings, sounds to me like you need a new genuine Bosch maf (non oem mafs are a waste of time),, they are supp...

Have you got a ‘vortex’ type PCV oil strainer? BMW fitted ones that looked like a foam bog roll and these are known to clog and cause pressure build up. The later version is a vortex - no foam. They were fitted to diesels and I’m not sighted on what is on the petrol version. X5sport, PCV's on petro...

You need the codes read, this has happened on here before and it was down to a steering angle sensor which was reset and all worked fine.

Excellent work and determination,well done

Ive had the initial letter for about a month now but not from the dealer, so waiting for that one, job takes 4hrs, make sure they do have all the parts to undertake the job or your car will be impounded by the dealer , its happened loads of times......

X5Sport wrote: ↑Sun Aug 21, 2022 2:35 pm Doh I don’t know why I read ‘expansion’ as ‘screen wash! Sorry

We have seen lots of reports about the screen wash tank too, but not relevant to your issue.

Because the title of the thread is "Expansion tank Leak"

Get mine from a chap in France, sends the USB over....

Dug out the reciept from my files as I put the X5 down as a work vehicle on my books,,,,Below is the site I ordered the kit from......
https://www.darksidedevelopments.co.uk/ ... gines.html

My 2004 e53 M57N had them as I removed them when I changed the injectors.......

Found this online: 4501 - Exhaust Gas Recirculation- Negative Deviation / Air Mass too High This is set when the following occur: MAF - Mass Air Flow sensor not reading correct air mass MAP - Manifold Air Pressure not reading correct air pressure EGR - Exhaust Gas Recirculation not working properly ...

The M57 is pretty bulletproof, only thing I would say is the swirl flaps need removal and upon start up check for any smoke in the engine bay on the exhaust manifold side, they used stainless steel for the manifolds which do crack over time, there are cast ones available.....also may be carbon build...

Not sure where you have heard that but the swirl flaps only really activate when your at tick over.......

4501 relates to exhaust gas recirculation....EGR, MAP, MAF......you did say the MAP sensor you replaced was generic...if its from china then I would punt on that. You shouldnt have had that black smoke when you put your foot down....unless there's no DPF present.