2011 750i M-Sport (SWB)

[jjord100]

Hello all,

Picked up a 7 series for a great price in June of 2025, and this will be the first 7 series we have owned. It also has the M-sport package on it. As with any car you get at a great price, there are a few issues to sort out. Bit of a back story, this car was purchased by the PO back in 2018 (nearly $22,000 per the title) with 82,000 miles on it. Based on some included dealer records, it had the following parts changed:

- Starter
- Both front axles on separate visits
- Upper oil pan due to damage from the axle
- Oil pump chain (during above repair)
- Fuel tank, sending unit, and pressure regulator
- Various PCV related pipes
- Couple of coils and plugs
- Oil changes

He was selling the car due to needing timing chains and being in limp mode, so I went expecting to hear all kinds of rattling and/or a possible no start situation. However, it started up fairly easily (with a jumper) and outside of some initial rattle while the oil pressure built, it ran great and was able to drive it onto the trailer!

After talking with the PO a bit more, he bought it as somewhat of a project to play around with and quickly lost interest. I feel that this car may have been sitting for several years and may currently only have about 88k on it. Due to the poor state of the battery and the electronics freaking out, I was unable to check the odometer. Battery was so bad that it could only muster 5.81 volts after about 18 hours of trickle charge. I am picking up a new one today so I can clear the 8 million codes that are in there and see what comes back.

Here is a summary bringing this to the present:

- Looked into the CCP and called dealers/BMW NA = Dead End
- Got a laptop, updated it, and installed ISTA+
- Used that for diag, which led to a cam adjuster (Bank 1 EXH)
- Ordered 4 adjusters (A-Premium) and took everything apart
- Bank 1 EXH cam had slipped approximately 5-10 degrees (may not have needed adjuster but went ahead and installed both on that bank but kept the originals)

Replaced the top guide while I was in there
All other guides scoped out ok, no missing plastic
Put it all back together, cylinder 1 misfire

Found injector 1 to be broken at the connector (pulling away from the injector body) and evidence of a prior repair attemp
Replaced and coded a new injector

Once that was done and it ran good, proceeded with other maintenance (Trans, diffs, transfer case, 4 new tires, alignment, oil change, PS fluid change, spark plugs, coils, drive belt)

April 2026 update. Approaching the 10k mile mark since resolving the timing issue. Only other thing that happened was water pump replacement in the dead of winter (leak started due to failure of the bearing) and I also had some issues with the trans cooler bypass neck (plastic bit on the front of the cooler) leaking coolant. Due to its location and potential for coolant/trans fluid mixing, I may relocate this to the front at some point. I already have a standalone cooler that would work.

Other than that, it has been great. Really good power when you need it and comfortable to drive. Up next on the list:

- Clearcoat repair on the aftermarket spoiler
- Removing the M badge that the PO put on
- New intake system
- Downpipes
- Various exhaust wrap, sheilding, possibly turbo blankets
- Window tint replacement (poorly done)
- Seat thigh adjuster repair (both sides)