3.0L Eng Cis-E Control Unit - Current Values Chart (07.3/48)
Publication date: 1991-06-01Reference number: 07.3/48
3.0L ENG CIS-E CONTROL UNIT - CURRENT VALUES CHART
TECHNICAL SERVICE BULLETIN
MODIFIED CIS-E CONTROL UNIT - ENGINE 104
MEASURING CURRENT ON ELECTRO-HYDRAULIC ACTUATOR - ENGINE 104
Model: 1990-91 Mercedes-Benz 300CE, 300SL
Group: Engine
Bulletin No.: MBNA 07.3/48
Date: June, 1991
A. Modified CIS-E Control Unit
Since September 1990, modified CIS-E control units are installed which ensure that the nominal value of the electro-hydraulic actuator current is reached without time delay when switching on the ignition.
Under certain circumstances, the EHA milliamp value on previous CIS-E control units, of the above mentioned engines, could have been off by +/-13 milliamps from the nominal value for up to 15 minutes after the ignition was turned to "OFF.
| Model | Chassis End Number |
|---|---|
| 124 | B 34721 |
| 129 | F 019363 |
The modified CIS-E control units are exchangeable with the previous version.
B. Measuring Current on Electro-Hydraulic Actuator
When measuring the current on the electro-hydraulic actuator (after switching on the ignition) a deviation of 1-13 mA from the relevant nominal value is permissible. After 15 minutes, with the ignition on, the relevant nominal value must be reached.
If the current values meet the above mentioned criteria, the control unit inside does not have to be replaced.
| PART NAME | OLD PART NO. | NEW PART NO. | MODEL APPLICATION |
|---|---|---|---|
| CIS-E Control Unit | 011 545 13 32 | 011 545 43 32 | 124.051 - Federal |
| " | 011 545 11 32 | 011 545 44 32 | 124.051 - California |
| " | 011 545 34 32 | 011 545 45 32 | 129.061 - Fed. 5-spd. M/T |
| " | 011 545 09 32 | 011 545 38 32 | 129.061 - Fed. 5-spd. A/T |
| " | 011 545 06 32 | 011 545 10 32 | 129.061 - Cal. 5-spd. M/T |
| " | 011 545 35 32 | 011 545 46 32 | 129.061 - Cal. 5-spd. A/T |