I have just bought a 1998 E46 318I, It drove very well and the steering responded perfectly. for a 90 degree turn I did not need to turn the steering more than 3/4 of a complete circle. However after fitting an alarm the steering ratio is not as it was before for the same turn i have to turn the steering wheel a lot more. Could the steering be influenced by the electricals?
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ok its a little diffrent for this vehicle you have a 3 step prossess for each bolt as listed below first tourqe all bolts to 22 ft pounds then when they are all tourqued to that ft pounds then turn each bolt an additonal 90 degrees then after you do that to all the bolts you must turn them all another 90 degree and that is how tight they should be i was a bmw mechanic for 3 years i am not sure why they do it this way but it is the proper setup
most likely it is a wiring harness problem. maybe rubbing on the steering shaft at some point. May have worn through and broke at the wear spot. The security wiring for the key coder decoder circuit usually is in a harness going to the ignition switch. If it shorts or seperates it will not allow the engine to operate due too no signal to PCM (power control module). The coder/decoder reads the chip in the key and determines if the engine is allowed to be started.
hi this has to be done in 3 stages, leaving 20 to 30 minutes between tightening's they are as follows..
stage 1: 30Nm leave 30 minutes
stage 2: 90 degrees turn leave 20 minutes
stage 3: 90 degrees turn leave 20 minutes
you have to leave them this length of time so as not to put to much strain on the head in one go...hope this helps please vote thanks
The Active Steering system uses a Papst
brushless dc motor to rotate the cage (ring gear) containing the planet
gears a planetary gearbox at the bottom of the steering column. The
motor effectively changes the steering ratio by increasing or
decreasing the amount of gearbox output rotation relative to changes in
the steering-wheel angle input. The resulting ratio depends on the
speed of the car. For instance, a low 10:1 ratio gives high
maneuverability for parking in tight spaces, with less than two turns
of the steering wheel, lock to lock. To track straight at highway
speeds, where even a small steering input can produce a quick sideways
acceleration, the electric drive boosts the ratio to 20:1. Cars without
Active Steering typically have ratios halfway between (specifically
14.1:1 for the BMW). .... Now, if your active steering does not work , the car reverses back to power steering and the ratio is 15.1:1 so the car can be driven but the "active steering " is not working and still needs to be fixed. It the unit needs to be replaced and your car is not under warranty, the repair cost may reach 5000 dollars.