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post #2 of (permalink) Old 16th May 2011 Thread Starter
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Re: Scenic II handbrake module

Okay then, here follows a small tutorial on how to change the handbrake control unit on a 2005 Grand Scenic II.

The unit itself is located under the rear of the car, centrally mounted just aft of the fuel tank.
It has 3 mounting points, two bolts located in the recess beside the jack storage area inside the car and one smaller bolt holding the unit in place from underneath. The two outer/larger bolts appear to take most of the weight of the unit and the smaller single bolt appears to be only for supporting the unit to allow the other two to be located/tightened.

A cable runs from either side to each rear caliper, with the N/S cable running over the exhaust heat shield. Both are supported halfway by a small bracket. The cables are held in place at the caliper by a “C” shaped clip. The cables then sit in place to pull the handbrake lever on the rear of each caliper.

A third cable runs between the spare wheel ( if fitted) and the rear silencer up to the floor of the car where an emergency release handle is located inside the car.

Last but not least the wiring loom connects to the unit by way of a multiplug. This is released/connected by way of a ¼ turn clip.

I started by removing the yellow “T” shaped emergency release handle in the boot. Push the small clip at the top of the "T" and push the cable up and it pops free from the handle. Under the car, pull the plastic mounting free from the floor of the car and release the cable from it's two clips.

I removed the “C” clips at either caliper and cut the handbrake cables to release them from the levers and pulled the cables from their supporting brackets.

Then I removed the one bolt supporting the exhaust heat shield to allow the N/S cable to be pulled free.
I released the wiring loom from the unit and loosened the small supporting bolt before removing the two bolts inside the car.

Once underneath the car again I removed the small supporting bolt and the unit was free from the car.
Refitting was just a basic reversal of the above.

I positioned the unit so I could run the cables in the general direction they would take. I refitted the heat shield once the N/S cable was located above it.

I loosely fitted the small supporting bolt before locating and tightening the two bolts inside the car followed by tightening the small lower bolt fully.

Then the emergency release cable was clipped into place, pushed through the floor and the handle refitted.

Each handbrake cable was clipped into it’s supporting bracket and run to the caliper. The “C” clips were refitted to hold them in place and either end was looped over the handbrake lever. At this point the new plastic locating clips were fitted to each lever ( these come supplied with the unit )

After a check that all bolts and clips were secure I refitted the wiring loom.

The handbrake itself was not operational at this point as the unit has to be reprogrammed/initialised before it will work correctly. An “electronic fault” warning showed up on the dash once the car was restarted. This “fault” message cleared once the unit was reprogrammed.

I had the reprogramming done by an Independent Renault Specialist rather than either of my local dealerships due to the cost involved. The Indy completed the task in less than 1/3 of the time and cost quoted by the dealership.
If anyone in Central Scotland would like contact details then please contact me. I'll be pleased to pass them on

I have some other pics if anyone needs them .....just ask and I'll post them up.

I’ll pull the old unit apart sometime this week and attempt to locate the source of the failure .....
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I think I have CDO. It's like OCD, but with ALL THE LETTERS IN THE RIGHT ORDER
Currently in Gonescenile's garage:
A wee French toy & a 2010 Honda VFR 800

Last edited by Gonescenile; 16th May 2011 at 10:19 PM.
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