Hi all,

I am going to change the rear pads and discs this weekend.
My car has the EPB TRW rear calipers.
I thought you had to retract the calipers by a certain operations of brake, throttle pedal etc. But a video online, a garage just had the parking brake off, disconnect calipers etc and fitted discs but then manual wound the calipers back like on a normal none EPB calipers and that was it???

if you have a GAP IID tool you can set the EPB to latching. this fully slackens the handbreak cable within the actuator.

you then need to fully wind back the break shoe adjuster which is located behind the disc and is accessed via a small aperture in the break disc. plenty of videos on you tube.

the combination of the brake pedal and EPB is to set the car in to EPB calibration mode, this allows the actuator and break pads to correctly re-adjust to the clearances after swapping the hand brake shoes. this is only required if swapping the shoes...

Hi,

I don't have the tool.

There is no handbrake shoes. Mine has the calipers disc pads only. No appetites in discs etc?

you need to add your model to your signature....

Oppps missed that.

Added it but menu only goes up to 2013 and mine is a 2014 4.4 TDV8. Brembo fronts, TRW rears.
Hope that helps?

the_big_1 wrote:

Hi all,

I am going to change the rear pads and discs this weekend.
My car has the EPB TRW rear calipers.
I thought you had to retract the calipers by a certain operations of brake, throttle pedal etc. But a video online, a garage just had the parking brake off, disconnect calipers etc and fitted discs but then manual wound the calipers back like on a normal none EPB calipers and that was it???

If the EPB is not put into "Service Mode" you will ruin the Motors...

Even with the EPB in service mode, the pistons still need wound back in

Hi ya,

How do I put them in service mode without the tool?

Here is the video where they do the change without any service modes etc.

Looks like the video is for L320 sport rear and not L494. L494 has the servo motors driving the pads for handbrake activation. A totally different system to the LR3 and L320 which use the older top hat brake system for the handbrake
Forcing the pistons back wil wreck the servo motors in the L494 system so be carefull.
Take note Disco Mickey is the expert.
Regards
Barry 2017 Range Rover Sport TDV6 L494 SE Fuji White
2011 Range Rover Sport SDV6 L320 SE Fuji White Loved but GONE
2010 TRAKKA Motorhome Fiat Ducato GONE (What a dud, don't buy one)
2006 Discovery 3 SE TDV6 Automatic Chawton White/Ebony. Loved but GONE
2006 BMW X5 diesel White/Charcoal, Bought new, Gone after 12 years! Was Excellent.
Ex Member Range Rover Club NSW

Hi,

My brakes a 100% the same as the video and is a L494. The front and rear calipers are exactly the same as in the video.
Also, I have TOPIX for my car and it does say that there is a procedure to put them in service mode. I will try it Friday to see if it works.


Cheers all