00283 - 00283 - ABS Wheel Speed Sensor Front Left
 

Has anyone had this on their D2?

In my case the error comes up with the car stationary and ignition on, and after clearing it in VCDS it comes back instantly.

Disconnecting the sensor also doesn't affect the error. It comes up instantly and can't be cleared.

The odd thing is that in ABS measuring blocks the front left wheel speed reporting matches the other 3 wheel (so the sensor is reading the wheel speed correctly)
I have inspected the wiring and its all good.

I've tried to remove the sensor but after undoing the bolt the sensor is rust-welded to the hub.

The phonic gear wheel is fine and has been inspected around a month ago when the CV boot was replaced.

Tomorrow I'll have a go at the sensor again with a hammer and a chiesel... new sensor costs crazy money (£207 on tradition) so if its that I'll be looking to replace it with something fom a vauxhall vectra or similar as the sensors are the same and 8% the price..

This is the error description from ross tech:
00283 - ABS Wheel Speed Sensor Front Left (G47): Electrical Fault in Circuit
00283 - ABS Wheel Speed Sensor Front Left (G47): Open or Short to Plus
00283 - ABS Wheel Speed Sensor Front Left (G47): Signal Outside Specifications
Possible Causes

Open Circuit in Wiring from/to ABS Wheel Speed Sensor Front Left (G47)
ABS Wheel Speed Sensor Front Left (G47) faulty
Brake Electronics Control Module (J104) faulty

Possible Solutions

Check/Repair Wiring from/to ABS Wheel Speed Sensor Front Left (G47)
Check/Replace ABS Wheel Speed Sensor Front Left (G47)
Check/Replace Brake Electronics Control Module (J104)


00283 - ABS Wheel Speed Sensor Front Left (G47): Mechanical Malfunction
Possible Causes

Excessive Air Gap between ABS Wheel Speed Sensor Front Left (G47) and pick-up.
Depending on the equipment this could be on the Rotor or Bolt-on wheel bearing assembly
Damaged, incorrect or rusted pick-up ring
Short Circuit in Wiring from/to ABS Wheel Speed Sensor Front Left (G47)
ABS Wheel Speed Sensor Front Left (G47) faulty

Possible Solutions

Check ABS Wheel Speed Sensor Front Left (G47) Installation
Check the pick-up ring
Check Wiring from/to ABS Wheel Speed Sensor Front Left (G47)
Check ABS Wheel Speed Sensor Front Left (G47)

Seems like a classic case of broken wires in the cable from all the years of driving and cable being bent as you turn the wheel or go over bumps or potholes. The wire strands are broken in the cable but sometimes make a connection so you still get reading in measuring blocks.

Over the years I have learned that:
1. You can cut out the middle of cable and re replace it with flexible cable and have many more years of service from the same sensor. I use microphone cable I bought many years ago from Maplin.

2.On the rare occasion it can be sensor itself faulty but there is not much in sensor anyway, just a magnet and wire coil so likely just a dry solder joint between coil and connecting cable. And in my experience if I replace it with cheap sensor it only lasts a year or 2 max.

3. Sometimes the sensor and connecting cable may be fine but there is a dry solder joint inside ABS unit. Open it up, reflow the solder joints and it's fine again

Things didn't go to plan yesterday :(

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I haven't changed an ABS sensor on a D2 for probably nearly 20 years, which perhaps not surprisingly was much less stuck than yours. I did one last year on my brothers A4 where the body snapped, liberal use of a drill (plastic sensor, cast hole so easy to drill out) got it cleaned out in no time.... The snapped bolt will be more challenging but suspect it is going to be the same basic technique with the addition of some more precision and a tap!

I'd try some heat and a good pair of Mole grips on the bolt before thinking of drilling it out.

Welding a nut on to it might also work if there's enough of the thread exposed to get a nut to stay put.

I think i will grind the bolt down flat and drill it out, best i can do in field condition.

Btw I checked continuity on on the sensor harness and it was ok right to the end where i cut it off, so it wasnt the wiring.

New sensor ordered, I'll update this once i have it back in

I can't decide if even posting this is going to get me nailed as the biggest bodger on the forum, but for what it is, if you are going with a good quality sensor, I'd be tempted to remove the remnants of the old one and then you could probably use a spot of glue to fix the replacement leaving the old bolt in place......

Worst case means you can't remove the sensor without damaging it..... the same sensor that was in there for 20 years and had become so stuck it may as well have been glued in :Confused:

Flame away :ROFL:

Your idea is not too far from the D2 realm as prefacelift sensors are press fit :D