I am stumped guys. My car is an 07’ 335i 6mt with 133k, well kept and meticulously maintained. About every bolt on you could have aside from meth and a built motor. Tuned with JB4 bef with Pi for about 15k trouble free miles aside from turbo issues. I have Recently replaced some failed Hybrid twins with a fresh set and went to prime oil system after the car sat for approx 7 months. The car cranked over and fired right up to my surprise, apparently enough fuel pressure to start despite pulling the fuel pump fuse earlier that evening.
Out of fear of harming turbos prematurely, I immediately killed the engine, it ran less than 2 sec max. I disconnected the battery, then relieved any remaining pressure from the fuel system via the fitting on the fuel rail. I reconnected the battery, seemed like maybe a little more
“spark” than typical when I put the ground cable on, but nothing that alarmed me.
I went to start the car and this is where the party begins,
car wouldn’t even attempt to turn over, power windows don’t work, sunroof doesn’t work, wipers started going full blast by themselves, followed by airbag warning, dsc, tpms, etc. I attached screen shots from my Autel scan tool, mainly wheel speed sensors, steering angle, dme errors, Kombi, Jbe, frm. When I clear the codes, nothing changes as far as dash errors and still no attempt to start. I don’t think it’s a battery cable/ terminal issue as I have 12.5v at the Jump terminal under the hood as well as the wire running off the alternator and starter. Beemergeeks protool connected once and then lost connection before I could run any tests. I haven’t tried inpa and can’t get reingold working on my laptop so I’m hindered there. I have had luck connecting via my Autel scanner as well as Bav Tech program. Bav tec scanner can’t manually control windows or ac fan. It can cycle the electric water pump but it’s kind of sporadic.
My gut assumption was a bad JBE, I ordered a working used one out of a 07’ 335xi, swapped it in and got the same result. Would not having it coded to my car be an issue as far as not even letting me test fire the car? I’ve checked my grounds under the hood, as well as the wires and connectors having anything to do with my recent turbo install. I added PR coils and new plugs at the same time, the car fired right up for a sec so I don’t think the coils would be related??... I’m stumped guys and don’t know what to do from here, I’m all ears for advice, I’m familiar with bmw’s and am capable of basic electrical testing and diagnosis when pointed in the right direction. The headlights work, the power locks sometimes work, sometimes not, I have a aftermarket android ccc Nav., the screen turns on and displays all the ccc errors and main menu but doesn’t respond to steering wheel controls, or idrive knob. Hvac controls don’t work at all, power seats don’t work. Scan tool pics are attached, apologies for the long post, I wanted to give details that could help, thank you in advance for your input, I’m ready to enjoy my car again!
Out of fear of harming turbos prematurely, I immediately killed the engine, it ran less than 2 sec max. I disconnected the battery, then relieved any remaining pressure from the fuel system via the fitting on the fuel rail. I reconnected the battery, seemed like maybe a little more
“spark” than typical when I put the ground cable on, but nothing that alarmed me.
I went to start the car and this is where the party begins,
car wouldn’t even attempt to turn over, power windows don’t work, sunroof doesn’t work, wipers started going full blast by themselves, followed by airbag warning, dsc, tpms, etc. I attached screen shots from my Autel scan tool, mainly wheel speed sensors, steering angle, dme errors, Kombi, Jbe, frm. When I clear the codes, nothing changes as far as dash errors and still no attempt to start. I don’t think it’s a battery cable/ terminal issue as I have 12.5v at the Jump terminal under the hood as well as the wire running off the alternator and starter. Beemergeeks protool connected once and then lost connection before I could run any tests. I haven’t tried inpa and can’t get reingold working on my laptop so I’m hindered there. I have had luck connecting via my Autel scanner as well as Bav Tech program. Bav tec scanner can’t manually control windows or ac fan. It can cycle the electric water pump but it’s kind of sporadic. My gut assumption was a bad JBE, I ordered a working used one out of a 07’ 335xi, swapped it in and got the same result. Would not having it coded to my car be an issue as far as not even letting me test fire the car? I’ve checked my grounds under the hood, as well as the wires and connectors having anything to do with my recent turbo install. I added PR coils and new plugs at the same time, the car fired right up for a sec so I don’t think the coils would be related??... I’m stumped guys and don’t know what to do from here, I’m all ears for advice, I’m familiar with bmw’s and am capable of basic electrical testing and diagnosis when pointed in the right direction. The headlights work, the power locks sometimes work, sometimes not, I have a aftermarket android ccc Nav., the screen turns on and displays all the ccc errors and main menu but doesn’t respond to steering wheel controls, or idrive knob. Hvac controls don’t work at all, power seats don’t work. Scan tool pics are attached, apologies for the long post, I wanted to give details that could help, thank you in advance for your input, I’m ready to enjoy my car again!
