ra3000tpm0010x

0010 - Notes on towing as well as test and adjustment work (EA, CC, ISC)

Type ra · topic 30.20 · version 9429 · 1994-07-17

Applies to:

Where it sits

Function group 1 Engine › 30 Throttle control, speed control systems › 30.20 Electronic accelerator (EA)/cruise control (CC)/idle speed control (ISC) — Series 124 (models 008, 028, 029, 032, 034, 036, 052, 066, 088, 092) · Series 129 (models 058, 063, 067) · Series 140 (models 028, 032, 033, 042, 043, 050, 051, 063, 070) · Series 202 (models 028) · Series 210 (models 053, 055)

30-0010 Notes on towing as well as test and adjustment work

Towing

On ASR vehicles no restrictions are necessary when towing on both axles.

Towing with a raised axle is only permissible when the ignition is switched off (in position "1") otherwise the rear wheels are braked.

0010 - Notes on towing as well as test and adjustment work (EA, CC, ISC)

P00-0027-15

Test and repair work

For performance and emission testing on the brake dynamometer, the following is to be noted on vehicles with ABS/ASR:

The ASR system must be rendered inoperative so that the rear wheels are not braked when driving onto the brake dynamometer.

a) On vehicles with an ASR system which can be diagnosed (as of ASR III), connect socket 1 and 6 to the test coupling (X11/4). As a result the ABS/ASR control module is in diagnosis mode and the ABS/ASR malfunction indicator lamp comes on.

b) On vehicles with an ASR system which cannot be diagnosed (ASR I and II), disconnect the coupling at the EA or ASR control module.

If it is necessary to increase speed at the engine during test and adjustment work on vehicles with ABS/ASR, the engine speed increase must increase directly from the accelerator pedal. If the speed is increased at the throttle linkage in the engine compartment, limp-home mode is actuated and a fault is stored in the fault memory.


With the ignition ON, the engine switched off and the vehicle stationary, programming of the special mechanical throttle valve angle (idle speed position) of the engine is carried out by the computer in the control module. The correct values are calculated and saved again. The calculation takes 90 seconds.

The plug connection of the actuator is water-tight. It may only be opened during the test work specified in the test program. Cleaning agent or contact spray may not be used on the actuator plug connection.

EA or CC/ISC control module is not protected by fuses.

Welding work

The following points are to be observed when welding with an electrical welder:

Disconnect negative terminal of the battery.

Connect the ground terminal of the welder directly to the part to be welded.