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Old Mar 14th, 2014, 08:45 PM
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Exclamation r53 -02 ABS need help. tried it all!!

i have the classy BAS problem. But i tried ALL the selutions and it has gotten out of hand and i need elit tips...

What i have done to try fixíng it (And i have seen improvments along the way!)

4x orginal new speed sensors
4xnew wheelbearings (with the magnetic thing that tells the rotor speed)
a new renovated ABS unit. (A FORTUNE.....)
I hav tryd foolowing the cabels foor sign of any damage.
Changed the battery

Now what i am left with.
I plugg the Bosch computer to the car and try reading out the fault codes.
Tyre pressure light comes on and off (not depending on if i drive or not.

-Battery is low.
-wheel angle sensor.
-4falty abs sensores.

When i open the menu that shows the rotary speeds:

Front left seems alright while driving, exept it sometimes drops down ~40kn/h then goes back up to the correct value (the driving speed)

rear left and right is allright.

FRONT RIGHT is a problem. when i dont drive the sensor gives me a value of 10-20m/h (WHEN I DONT ROLL?) And it does not change when i lift out the sensor, still the same vaule. WHY?


Sometimes when i remove the fault codes i cant.
And sometimes i can remove them but then when i turn the ignition on the anti spin lamp starts to blink (Beacus the car thinks its driving in 30Kmh and 3wheels are still. BUT WHAT??

I really dont know what to do anymore, the car is in 1000pices and i need to know what you guys have had to change to get your car fixed.

Culd it be the ECU?? (/need an ECU reset?)
Culd it be the ABSpump (thats bolted to the Unit to the left in the engine departmet)
Or is there something els that you had to change?


It really bothers me that the right front wheel thinks its spinning.
Please help i really dont know what to do next. ALL TIPS AND HINTS are accsepted with gr8 appreciate!!

Btw the car has 110000km on the clock if thats any good foor you.
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Old Mar 15th, 2014, 12:34 AM
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Hi ya

Disconnecting the battery may help, but I think there is another problem.
have you checked your engine control module plugs you may need yet pull both of them off clean and check for corrosion.
Have a good look at the abs wheel speed sensor plug they do corrode.
Also try to follow the wiring back into the loom the wires do get damaged
A good place to look for damaged wires is around the engine mount and under the fuse box in the engine bay also as the loom comes round from the fuse box to the abs pump.
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