Replacement
1. We prepare the car for work (see «Preparing the car for maintenance and repair»).
2. On the Astra model, turn the two latches counterclockwise by 90°...
... and remove the overlay by pulling it towards you.
On the Zafira model, remove the two latches by picking them up with a thin slotted screwdriver...
... using a TORX T20 wrench, unscrew the two fastening screws...
...and remove the cover.
3. Using a screwdriver, remove the air duct holder retainer and remove the holder.
4. Remove the duct.
5. Turn the switch 90°and remove it from the bracket.
6. We wring out two clamps, we disconnect block of a plait of wires and we remove the switch of a signal of braking.
7. Install the brake light switch in reverse order.
Adjustment
After installing the brake light switch, it must be adjusted so that the brake lights light up when the brake pedal free play is selected, that is, before the actual braking begins.
If the brake lights are constantly on, it is necessary to drown the switch stem by pressing it (a click should be heard).
If the brake lights come on too late, the switch stem must be pulled one or more clicks out of the switch body.
If the switch cannot be adjusted (the stem is not fixed in the required position), it should be replaced.
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