EPB and plastic box question

[Floz]

I got into sandy mud with my 2007 D3 that ground down all my brake pads and shoes. After the usual squeal of the EPB and seizure (unlocked manually with cable) its time for the EPB overhaul me thinks. I have the replacement gears for the module and watched a good number of videos.
However none of them showed a plastic box mounted in front of the module and bracket and I'm wondering what this might be and what's involved to take it off to have access to the module bracket (see pics). My D3 is a 4.0 V6 petrol with LPG conversion. Could this box have something to do with the LPG system?

At this place I'm also interested of any experience people have taking the module out either by taking the bracket out or through the left side wheel arch. Any preferences? Anything I have to specifically watch out for?

Any input much appreciated.
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[PerthDisco]

I’d start by removing discs and thoroughly cleaning / servicing the park brake assembly. You may need new pads in there. Plastic box probably ok once it’s all reset. Follow Bodsy’s Brake Bible for Discoverys.

[Floz]

I’d start by removing discs and thoroughly cleaning / servicing the park brake assembly. You may need new pads in there. Plastic box probably ok once it’s all reset. Follow Bodsy’s Brake Bible for Discoverys.

Sorry I failed to mention that I have already cleaned out everything, replaced all brake pads and park brake shoes and made sure that the park brake wires are clean and sliding ok. After assembly the park brake did not work and was still screeching, I suspect that the common fault (broken tip of small gear in module) has occurred.

I have the parts already and have to get the module out. The plastic box seen in the pictures is not the EPB module. The module sits behind this box. What I'd like to find out is what the function of this box is before taking it out to have access to the bracket and EPB module.

[TopEndThom]

Before you start the ridiculously tedious process of removing the module, have a look a this thread.

EPB - Park brake module fixed IN SITU

The threaded rod that tightens the cables can torque itself too tight if it ever reaches its max travel. This happens when the shoes are worn down or the cables stretched. In this scenario the squeal you hear is the motor trying to spin a seized rod, and a built in slip gear (or clutch?) doing its job so that the nylon teeth on in the gearbox proper don’t shear off. The threaded rod can be manually loosened whilst the module is in-situ. You’ll need to lay under the car and hug the drive train whilst you get the cover off.
Worth a shot if your symptoms are the same as what mine were.

I thought my EPB was absolutely toast but it’s worked perfectly ever since.

[Floz]

Thanks Thom,

I have read your thread before but thought the access is too difficult in-situ. I will give it a go though, if successful it does save a lot of trouble.
However to get access I have to remove the plastic box in front and I'm still trying to find out what it is. Nobody else seem to have it, at least not at that place. ???

[PerthDisco]

Thanks Thom,

I have read your thread before but thought the access is too difficult in-situ. I will give it a go though, if successful it does save a lot of trouble.
However to get access I have to remove the plastic box in front and I'm still trying to find out what it is. Nobody else seem to have it, at least not at that place. ???

Be the one who tells us what it is

[TopEndThom]

Thanks Thom,

I have read your thread before but thought the access is too difficult in-situ. I will give it a go though, if successful it does save a lot of trouble.
However to get access I have to remove the plastic box in front and I'm still trying to find out what it is. Nobody else seem to have it, at least not at that place. ???

Is that box forward or aft of the EBP module? If it’s aft then you’re in business. Access to the module cover is from the front.

Also, is the screeching you hear the same every time? Kinda like someone playing with a pneumatic wheel gun?

[Floz]

Is that box forward or aft of the EBP module? If it’s aft then you’re in business. Access to the module cover is from the front.

Also, is the screeching you hear the same every time? Kinda like someone playing with a pneumatic wheel gun?

The box is aft of the EPB so I might be lucky

The screeching is pretty much the same every time but from what I can remember not like a rattle gun (I have pulled the fuse and was driving without a EPB for a while). What are the different causes rattle vs. continuous screeching?

[PerthDisco]

Have you watched the Britpart video? It’s a good one?

[TopEndThom]

The box is aft of the EPB so I might be lucky

The screeching is pretty much the same every time but from what I can remember not like a rattle gun (I have pulled the fuse and was driving without a EPB for a while). What are the different causes rattle vs. continuous screeching?

I remember it being difficult to find info on it when I had my issues, but piecing it together via YouTube I figured the ‘rattle gun’ was programmed into the module and would initiate when it sensed it was torqued up. All the videos I found where people had this issue had the same noise with the same frequency and pattern.
Constant screeching maybe when the threaded rod is loose but a gear has been stripped?

I’m sure there’s someone on here who knows exactly.