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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 181

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black
Rear Brake Calliper Overhaul

Following on from my propshaft overhaul to stop the droning, after a run to check it out I noticed the offside rear wheel was pretty warm so I decided to check the brake temps with my thermometer.

Nearside disc temp

Click image to enlarge


Offside disc temp

Click image to enlarge


I would say that my nearside rear calliper is most definitely sticking which wont be helping my fuel economy or the droning noise. I'm going to attempt to overhaul them in the first instance as an overhaul kit is about £30 all in and new TRW callipers are £250 each.

Straight on the phone to Rimmer Brothers and two days later:


 Christian.


Current Cars
2011 Range Rover Vogue HSE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project

Post #613701 24th Nov 2021 5:39pm
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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 181

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black

As the rear brakes are definitely binding I have decided to rebuild the callipers rather than replace them.

I stripped them off the car

Clamp the hose first

Click image to enlarge


Undo the banjo bolt

Click image to enlarge


Two securing bolts to the hub and then you can remove the calliper

Click image to enlarge


Here it is off the car



The piston was so stuck in the bore that an airline would not pop it out and I had to resort to welding a piece of angle steel onto the piston and using two G-Clamps to pull it out. It was well stuck.



Here's the piston out of the calliper and the new one next to it, the piston itself was in ok condition for the part behind the dust boot.



The bore looked nice and clean and undamaged so I continued with the rebuild



I used my wire wheel on the bench grinder to get off as much crud as I could and then gave it a good dosing of brake cleaner and wiped out all the bores. Cleaning the grooves for the dust boot and seal was nice and therapeutic as a small angled pick made light work of that. Followed by a brass wire brush to get them spotless.

Decided to paint them red to match the front ones, this paint takes forever to dry so I sped the process up a bit using a hot air gun as it was freezing outside and I am impatient.




Fast forward to paint dried and I have rebuilt the calliper with a new piston, seal and boot

Click image to enlarge


Calliper carrier new boots and pins re-greased




All back on the car



If it hadn't been for the painting I think this is a 45 minute job. Christian.


Current Cars
2011 Range Rover Vogue HSE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project

Post #613759 25th Nov 2021 9:50am
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DrRob



Member Since: 16 Apr 2015
Location: Hampshire
Posts: 2938

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

Great thread! Some useful pointers for all of us Bow down 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory interior and clear glass = "Rory"
1974 Series 3 Lightweight = "Millie"
--------------------------------------------------
2012 SDV6 Range Rover Sport - gone
2012 Freelander - gone
1993 200 Tdi Range Rover Classic - gone after 14 years rolling restoration "Rangie"
Series 2A V8 Lightweight - gone
1952 80" - gone
1949 80" - still in family since 1975

Post #613773 25th Nov 2021 11:12am
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dhallworth



Member Since: 10 Oct 2011
Location: Glasgow
Posts: 1503

United Kingdom 2012 Range Rover Autobiography TDV8 Baltic Blue

Great job, nicely done Thumbs Up

Given that rear calipers on them are known for seizing up, I'm almost tempted to order a couple of sets of them to keep on the shelf.

David. 1997 4.6 HSE - Oxford Blue with Ash Grey Leather
2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Freelander i6 HSE in Izmir Blue with Ebony Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Post #613783 25th Nov 2021 12:24pm
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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 181

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black
Side Steps

The side steps on my RR were almost complete in their transition from useful back into the iron ore from which they came, they were so heavily corroded I'm surprised they still had the strength to hold the rubber tread.

Totally shot all to hell.

Click image to enlarge


One of my neighbours works for a fabricators and I asked him if he could bend me some steel and he did one better and made me some channels of aircraft grade galvanised steel.

The step diminishes toward the front so I had to cut and bend the front into a smaller width, I used a piece of hardboard to mark the holes for the rubber tread and then drilled a 13mm hole at either end of the slot and then cut between the drilled holes with a grinder.

You can see the diminishing width here on the right hand side of the step.




It appeared that the step is also not straight, neither is the support box section.


Click image to enlarge



I cut a notch out of the box section so that it matched the old one and then welded it up, and did the same with the step itself.


Here's the step and the box section cut and slightly kinked to match the old one.

Click image to enlarge


A test fit onto the car



Then gave the whole lot a good few coats of hammerite, you can see the old one in the bottom of the picture, absolute state. That's the better one of the two, the other one was twice as bad.






The step reassembled and back onto the car


 Christian.


Current Cars
2011 Range Rover Vogue HSE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project

Last edited by Caesium on 29th Nov 2021 4:30pm. Edited 2 times in total

Post #614165 29th Nov 2021 4:23pm
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dhallworth



Member Since: 10 Oct 2011
Location: Glasgow
Posts: 1503

United Kingdom 2012 Range Rover Autobiography TDV8 Baltic Blue

That a superb job!

At least you know they'll be safe to use now!

David. 1997 4.6 HSE - Oxford Blue with Ash Grey Leather
2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Freelander i6 HSE in Izmir Blue with Ebony Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Post #614166 29th Nov 2021 4:28pm
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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 181

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black
Battery Low - Start Engine

SO having been a victim of the "Battery Low - Start Engine" warning constantly coming up, I decided on a course of action that means I would replace the Battery Monitoring System (BMS) and see if that helps.

I found some information online that the BMS can go faulty and some more information about how the battery monitoring system works see here https://www.fullfatrr.com/forum/topic61536.html

First I checked that my alternator was charging, it's a little high which leads me to think the BMS is reporting the battery as aging, which as you'll recall from earlier in this thread, it's not. It's two months old.


Click image to enlarge


I bought a brand new BMS, part number LR 037886



This is what you get in the box



The sticker shows it's been updated somehow.... interesting!!



Here's the old one and the new one together


Click image to enlarge


Its really straightforward to change them out, remove the battery and battery tray. One of the nuts that holds in the tray is accessible from below within the wheel arch according to the manual but I got it out from above.

The BMS itself is just unbolted from the bodywork and has the Positive and LIN bus cables which unplug.

The LIN bus cable is the most tricky to replace as it's all taped into the loom and it runs into the cabin and into the distribution panel behind the glovebox. Rather than untape all this wiring I just identified the old cable, cut it and soldered on the new one.

In this picture the LIN bus cable is the blue/green one in the centre and it routes into the grommet on the bulkhead.



Close up of the LIN bus cable



Cable cut and new one soldered in, note the heat shrink to cover the joint



All taped back up nice and neatly



The BMS monitoring cables all routed in - the other blue/green wire with the ring terminal is fused and connected to the live post. The whole new cable loom is covered with convoluted cable protection.

You can see the plug that connects to the BMS in the foreground - the unit at the bottom is the fuel burning heater



Once all connected back up I charged the battery overnight and then left it for 12 hours for the float voltage to settle and then I reset the battery again with IID (I did it when I changed the battery before).

Its important to reset the battery when it has been idle for a number of hours or the BMS will not accurately be able to judge the state of the battery due to the artificial elevation of charge caused by engine running or a battery charger.

You will be pleased to know I have not seen the battery low warning since. Christian.


Current Cars
2011 Range Rover Vogue HSE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project

Post #614397 1st Dec 2021 4:05pm
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