M3 E93 error code and limp mode frustrations

[Shaune9]

     Featured on BIMMERPOST.com

Dear All
I have a BMW M3 E93, which I have owned for circa 15 years. The car has been garaged for a significant amount of time but well maintained.
I have recently serviced the vehicle which included a new battery, I have not registered or had this coded to the car.
When driving I now get the engine yellow warning light and the car goes into limp mode.
Using Bimmerlink the codes I get are:
• 27E4 – Vacuum pump mastervac plausibility
• 2B57 – Engine emergency program activated
• 2976 - Engine emergency program activated
• E18F – Central registry does not match target registration.
I initially thought this may be the brake vacuum sensor, which I changed and cleared codes but then they all immediately came back.
I am now thinking it may be the Vacuum pump itself, but cannot hear any strange noises, whining etc.
Can anyone please advise on their views before I have to resort to taking this to the dealer and their astronomical prices.

Please note the E18F code has only recently appeared.

[gerri]

You should open a discussion in the M3 E9x section, here it is F8x.

https://www.m3post.com/forums/forumdisplay.php?f=72