Question about BMW 750
SOURCE: E32 V12 BMW LOCKED IN 3RD GEAR
Really a nice car. If this is an automatic, some Manufactuers use Electric solenoids to switch gears. A bad connector underneath the car could be blocking the signal.
For a stickshift, some use a slave cylinder to aid the clutch operation. If the slave cylinder is electric, it too could stop you from shifting into another gear.
You can try alldatadiy.com for wiring details. Autozone.com also has free wiring details when you register your vehicle with them. I am untrained for BMW products. Your best chance is to find where the Tach feed is attached to get its readings.
The Powertrain Control Module may tie both functions together. Also worthy of comment is your Security system and Ignition key. Perhaps the Antitheft is keeping the trans locked in a single gear.
I hope my solution helps you.
Posted on Aug 14, 2012
Tips for a great answer:
Feb 02, 2017 | Proton Cars & Trucks
Jun 29, 2014 | 2011 Fiat Doblo 1.6
Dec 20, 2013 | Cars & Trucks
Mar 28, 2012 | 2000 BMW 3 Series
Mar 12, 2011 | 2008 BMW 528i Sedan
Sep 23, 2010 | BMW 528 Cars & Trucks
Aug 21, 2009 | 2007 BMW 525xi Sedan
Aug 10, 2009 | 1999 BMW 328 Series
Jun 18, 2009 | 1989 BMW 7 Series
May 24, 2017 | BMW 530i Cars & Trucks
323 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: