Wheel bolts.....

[robert_e_smart]

Hi Paul,

I had a similar way of getting the abs light to go out on a TD Xantia, the light would come on whilst running, I would turn the car off (whilst moving) turn the key round to pre-start, jump start the car, and the abs light would go out! And not come back on again, until whenever it decided to stay on after start up.

I don't know if the ABS worked with the light on, but doing this was able to reset the computer, and clear the fault.

Robert

[robert_e_smart]

So, looking at repairing the ABS, and having it work correctly.

Are there any cheap compatible sensors that are used on other cars that are suitable. In earlier Posts, Golf 4 sensors were used to replace Teves sensors.

The resistance of the Bendix Version 2 sensors is 2550 Ohms approx. The teves sensors are near the 1100 Ohms. Is it possible to use a teves or equivalent, but adding a 1400 Ohm resistor before the sensor so that the total resistance is correct. Will this allow the sensor to fucntion properly?

Robert

[Dieselman]

I'm not convinced that the resistance will be very important at all, other than possibly for the initial open/closed circuit check.
The coil generates an AC voltage which the ECU counts the pulses of. It SHOULD still generate a voltage whatever the resistance (within reason).

[robert_e_smart]

I'm going to buy a pair of these:

http://cgi.ebay.co.uk/Front-ABS-Sensor- ... 35a6265d54

VAG sensors they're cheap and worh a try.

When I get them, I'll report back with their resitance, incase they are the same as Teves ABS sensors. Hopefully they work ok. The price is definately right!

[Dieselman]

Robert, you should probably be able to test them as soon as fitted by simply rotating the wheel by hand and measuring the output voltage.

[robert_e_smart]

Hopefully they will work, its the first check that the ECU might stumble on when it realises that the resitances aren't correct. Its all experimental, we'll see what happens. I hope they work, it will be a nice cheap fix for many of us in the future if it does.

[robert_e_smart]

Hi Folks

The VAG abs sensors arrived today, the resitance measures 1089 Ohms, so they're low for the Bendix 2 compared to the 2550 Ohms for the working sensors on the car. I'll report back if they work Ok in terms of ECU testing and ABS lighting when I fit them, hopwfully I can avoid having to fit resistors to fool the ECU.

Robert

[xmexclusive]

Hi Robert

From memory the early Bendix sensors were around 1100 ohms.
The later type ECU as on your car can work with either type or even mixed installations.
So I doubt that the resistance of your new sensors will prove a problem.

John

[robert_e_smart]

Excellent John,

That is encouraging. Hopefully I can get the old sensors hoked out easily.

Robert

[davetherave]

The three working ones on my car are 1088 1070 and 1182, so this does look promising!