Electronic Accelerator Control Module Replacement (30/4)

ELECTRONIC ACCELERATOR CONTROL MODULE REPLACEMENT

TECHNICAL SERVICE BULLETIN

ENGINE 104.990, 119.970/971/974/975 WITH ASR - REPLACEMENT OF ELECTRONIC ACCELERATOR CONTROL MODULE

Model(s): 1992 Mercedes-Benz 400 E, 500 E, 300 SE, 400 SE, 500 SEL

Group: 30 - Accelerator Control, Cruise Control (CC), Electronic Accelerator (EA)

Bulletin No.: 30/4

Date: June 1992

SERVICE INFORMATION

The Electronic Accelerator control module (used on cars with ASR) must be replaced in vehicles that fall within the range of engine numbers listed below. Always check with the Vehicle Master Inquiry to determine if the work needs to be done on a specific vehicle. The affected control modules contain software that may be too sensitive to certain conditions, resulting in the ASR warning lamp lighting, or the Electronic Accelerator system entering "limp-home" mode, combined with the storage of false failure codes. The codes tend to be related to the Electronic Accelerator actuator and the CAN-bus, but are not always consistent.

Model	From Engine Number	To Engine Number	From Chassis End Number (approx.)	To Chassis End Number
124.034	001700	003506	702384	772481
124.036	003064	004325	704685	768187
140.032	023667	033017	054960	079682
140.042	006478	009154	054800	079062
140.051	013544	019258	053809	079448

The new control modules have a production date of 16/92 (week 16 of 1992) or later stamped in blue. An additional way to identify the new modules is to check the "K" number, (circled in Fig. Fig 1 .)

Model	Sales Designation	"K"-number must be:
124.034	400 E	K11 or greater
124.036	500 E	K10 or greater
140.032	300 SE	K12 or greater
140.042	400 SE	K10 or greater
140.051	500 SEL	K10 or greater

Vehicles that are in for service should be checked to determine if the new control module has been installed. If not, the new module should be installed according to the following chart. Customers whose vehicles are not scheduled for service in the very near future should be contacted and asked to bring their vehicles in specifically for this purpose.

PARTS INFORMATION

Qty.	Part Name	Model Application	Part Number
1	Electronic Accelerator control module	124.034	124 545 06 32
1	Electronic Accelerator control module	124.036	124 545 07 32
1	Electronic Accelerator control module	140.032	140 545 65 32
1	Electronic Accelerator control module	140.042	140 545 14 32
1	Electronic Accelerator control module	140.051	140 545 15 32

• The shift selector lever must be in position P or N.
• The ignition switch must be turned ON for 90 seconds (without starting the engine). This allows the synchronization of the Electronic Accelerator Control Module (N4/1) and the Electronic Accelerator Actuator (M16/1) to take place.
• After the 90 second synchronization period, the ignition switch must be turned OFF.

WARRANTY CLAIM SUBMISSION INFORMATION

Submit a "Repair type 3" Warranty claim with applicable Repair code.

Campaign No	Damage Code	Repair Code (1)	Time (hrs.)
92-0441	54960 19	10	0.2 hr.
"	"	11	0.3 hr.
(1) - Operation: Check production date of Electronic Accelerator Control Module, if found to be OK (Repair code 10). Check production date of Electronic Accelerator Control Module and replace (Repair code 11). Only ONE repair code applies.