Originally Posted by
Rich84
Looks like your dealer might've forgotten to put the sensor back in or lost the clip. The sensor comes with a clip if you replace it, but a new clip is not supplied with the pads, so if you lose it doing the pad change, you're a bit stuck!
The screeching is a very common problem on these cars - most of the time it can be rectified by adjusting the EPB mechanism as per Bodsy's brake bible (disco3.co.uk) - this worked for me, but I discovered the rear brakes were very worn at that point so I replaced them and performed a full strip and clean of the park brake mechanism on each side. It's about an hour per side to do and involves removing the brake disc (which doubles as the park brake drum), inspecting and replacing the lining if required, clean and lubricate everything and re-assemble and adjust.
You're supposed to do this after 50K of arduous off-roading/mudding. Otherwise avoid using the handbrake until you perform the clean.
I would definitely perform all of these steps, and only if still unsuccessful would I look at touching the EPB control unit. I would first remove that from the car to check if it is just binding for whatever reason, and only look at replacing it if there was physical damage to the plastic winders. Plastic winders are a definite weakness, but it still takes many screeching episodes for the unit to be rendered inoperable - mine must've done it 10 times by the time I got around it adjusting the mechanism. I adjusted it and perfect ever since.
The dealers are very quick to replace the whole control unit at $$$, even when the fact that it's usually just the mechanisms needing adjusting that is the actual problem. They have to re-adjust the mechanism when they install the new unit, so the new unit will still fix the problem, but you're spending much more than you have to. An adjustment costs nothing - you just need a good set of tools with torx bits and a torque wrench.
Fossicker
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