P43.10-2037-07
Shown on model 171.456
1 Check valve
5 Resonance intake manifold
4a Retaining ring
A7/7 BAS brake booster
2 Vacuum line
3 Rubber grommet
4 Connection fitting
Modification notes
| Remove/install | ||
1 | Eliminate vacuum in BAS brake booster (A7/7) | To do this, press the brake pedal several times with the engine switched off. | |
Danger! | Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof | Keep body parts and limbs well clear of moving parts. | |
2 | Open engine hood and raise to vertical position | ||
3 | Remove air filter housing | Model 171.454/ 456/ 458 | |
Model 171.473 | |||
4 | Pull check valve (1) with vacuum line (2) out of rubber grommet (3) of BAS brake booster (A7/7). | Installation: Install new rubber grommet (3). | |
5 | Detach vacuum line (2) from connection fitting (4) of resonance intake manifold (5) | To do this, move red circlip (4a) so it touches connection fitting (4) and hold in this position. Then pull vacuum line (2) out of connection fitting (4). | |
6 | Remove the vacuum line (2) | ||
7 | Install in the reverse order | ||
Danger! | Risk of death caused by limbs being caught or crushed by rotating parts when performing tests on the brake test stand | Never leave the vehicle unattended on the rollers except in an emergency. Ensure that no one is under the vehicle or near rotating parts during testing. In case of emergency, use the EMERGENCY STOP switch to shut down test stand. | |
8 | Carry out brake test on the test stand |
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