Volkswagen Golf Service & Repair Manual: On a regulated roller dynamometer with contra-rotating rollers for
four-wheel drive vehicles
 Note
| The brake test must be performed on a controlled
contra-rotating single-axle roller dynamometer for four-wheel
drive vehicles. |
| “Contra-rotating” means that the dynamometer rollers of the
single-axle roller dynamometer are driven forwards on one side
and backwards on the opposite side. |
| The rollers drive the wheels of one axle in opposite
directions to avoid transmitting torque to the other axle. |
| “Regulated” means that the speed of the brake test stand
rollers is so controlled so that there is no difference in speed
during the brake test. |
| This prevents the transfer of a force through the stationary
wheels (not on the set of rollers) via the propshaft to the
rotating wheels on the rollers. |
| The forward rotating wheel is measured during the test,
which means two brake tests per axle must be performed. |
| The maximum test speed must not exceed 6 km/h. |
| The test rigs authorised by Volkswagen fulfil these
requirements. |
|
|
|
The drive is provided by the test rig.
For vehicles with a manual gearbox, ensure that the gear
lever is in neutral for the test. F ...
Note
If no test rig is available for four-wheel drive vehicles,
the brake test can also be carried out on a standard single-axle
roller dynamometer as ...
Other materials:
Air conditioning system compressor with magnetic clutch
The air conditioner compressor is driven by a V-belt from
the engine.
An electromagnetic clutch is fitted to the air conditioner
compressor. When the air conditioning system is switched on, it
transmits the mechanical drive between the V ...
Leaks at shock absorbers
Shock absorbers are often replaced because of externally
visible leakage. Inspections on the test rig and in the vehicle
have shown that in the majority of cases this replacement is not
justified.
Slight loss of fluid (“sweating”) at ...
Loosening and tightening threaded connections of drive shaft
Special tools and workshop equipment
required
Socket, 24 mm -T10361A-
Angle wrench -V.A.G 1756 A-
...
© 2016-2021 Copyright www.vwgolf.org
General information
Without roller dynamometer for four-wheel drive vehicles