The brake master cylinder is supplied only as a complete unit; internal components cannot be replaced.
To disassemble the master cylinder's outer parts, follow the indications given in the exploded view at the beginning of this section.
If the bush (10) inside the brake pedal (6) needs to be replaced, grease the external surface and fit the new bush using a press to insert it. The bush must be placed at 2 mm from the pedal external face.

To disassemble the various parts of the system, refer to the exploded view at the beginning of this chapter.
Warning
After performing an operation on the rear brake control, check the brake pedal position following the instructions detailed in sect. 4 - 3, Adjusting the position of the gear change and rear brake pedals.
Removing of the rear brake control
Refitting the rear brake controlDds diagnosis instrument
The main functions of the dds diagnosis instrument can be summarised as
follows:
Retrieval of errors (faults) of the ignition-injection system stored in
the engine control unit memory and their subsequent
deletion, if required.
Reading of engine parameters (rpm, coolant and air temperat ...
Removal of the starter motor idler gear
Slide the gear pin (21) complete with the gear (19) and washer (20).
Warning
Pay attention to the washer (20) since it may fall inside the
crankcase half.
At this point, it is possible to remove the starter motor as described in
sect. 6 - 3, Starter motor. ...
Coolant temperature
This function indicates coolant indication state.
The temperature unit of measure can be selected (C or f).
The reading is indicated as follows:
if the reading is between - 39C and +39C "lo" is shown flashing on the
dashboard (steady);
if the reading is between +40C and +120C it appears on t ...