1997 BMW 528i The passenger side front and rear doors won't
The passenger side front and rear doors won't unlock electronically, or by pulling the lock button up, can't even unlock them with a slim-jim. suggestions?
The passenger side front door On my polo unlocks itself if I double tap the lock buttonThe passenger side front door On my polo unlocks itself if I double tap the lock button
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Re: 1997 BMW 528i The passenger side front and rear doors...
I had the same problem on the rear door of my 1998 528i and it was the door actuator that had gone bad. I had to take the rear seat out to get the door panel off. Once I had the door panel off it was not that difficult to replace the door actuator.
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Ignition key works the manual door lock:
You get out the original fob... pull out the (metal) key... insert it into the single lock slot under the drivers side door handle...
and twist like an old fashion key lock.
Do the power windows work ? DDM - driver door module fuse 15 amp - location is the instrument panel fuse box , plus LT DR circuit breaker 25 amp. Circuit breakers rarely go bad . The power locks are controlled by electronic's .The passenger side has another power supply ,that's why they still work .
Door Lock System Components
The power door lock system consists of the following components:
• The driver door switch (DDS)
• The passenger door switch (PDS)
• The body control module (BCM)
• The driver information center (DIC)
• The rear door lock/unlock relay (LBEC)
• The reversible door lock actuators in each of the doors and liftgate
The front power door lock switches are integral components of the driver door module (DDS) and passenger door module (PDS). The switches are 2 position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDS or PDS. The DDS or PDS monitors these inputs and sends a LAN message indicating a change in the switch's respective position. Modules which activate the power door lock motors receive the LAN message and activate the motor in the appropriate direction to lock or unlock the vehicle's doors and liftgate. The rear door lock switch provides a lock and unlock signal to the body control module (BCM). The BCM upon receipt of a lock or unlock signal will control the rear door lock/unlock relay and also send a LAN message to the DDS and PDS to perform the appropriate function.
The modules which activate the power lock motors are:
• The DDS (driver door lock actuator)
• The PDS (passenger front door lock actuator)
• The BCM (both rear door lock actuators and cargo door/liftgate)
The DDS and PDS are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other causing the doors to lock or unlock.
The rear passenger and endgate doors are controlled by the BCM through the rear door lock/unlock relay which is incorporated onto the printed circuit board in the LH BEC. The BCM controls the unlock relay by providing ground to energize the coil and controls the lock relay by providing battery voltage to energize the relay coil. The energized the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. Since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.
It's possible you have broken wire or wires inside the flex boot from the body of the vehicle to the driver's door . This happens a lot .
Fuse Block - I/P instrument panel
Left of the I/P behind the side trim panel
the motor isn't bad. it doesn't get enough use to go bad. The clip holding the cable that makes the window go up and down broke.
google: window regulator repair clip 1997 bmw 528i. 97's and 98's are similar. 99 they changed them. they all break. they all break in the same place! It's the clip. 25 bucks order a repair kit from the guy. it's the same work as buying a $150 new regulator that will break again anyway
if you are referring to the rear end there are two Allen head plugs one right at the rear just above the bolts this is the fill plug and to the right and lower this is the drain plug. and if you are referring to Manual Trans there are two like bolt head plugs one directly on the bottom near the rear is the drain and 3 inches forward on the passenger side up 3 inches is the other which is the fill. it just needs filled until it runs out the top fill hole about 1.9 liters fluid type is MTF LT1
google: 1997 BMW 528i regulator repair kit. 97's and 98 are the same, 99's are diff. the same clip breaks in all of them. this guy has invented a permanent fix for it. same work repairing as replacing, only difference is that after repairing it, it wont break again!
pop the door panel loose near the door lock actuator is at top of door;break the cover off of the door lock actuator.manually turn the actuator worm gear out of double lock with a screwdriver and pull the inside handle; not the easiest thing to do...good luck
outside handle or inside well there are little plastic windows on the trim panel start there then take the inside mirror cover off and then pull at the bottom of door pull out the side and then pull up on trim to take off unhook door switch from botom and then the inside handle is easy from there but if your looking for the outside handle take the vapor barrier of and the take the bolt thats holding the handle out if you cannot then you must drop the lock or latch it has 3 bolt on the outer edge of jamb then you can get the hanlde out its 10mm then go backward the same way
The passenger side front door On my polo unlocks itself if I double tap the lock button
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