Engine Controls - Rough Engine Running on Cold Start
SI M 12 02 02Engine Electrical
May 2003
Service Engineering
This Service Information bulletin supersedes S.I. M12 02 02 dated October 2002.
[NEW] designates changes to this revision
SUBJECT
Cooper S: Engine Runs Rough on Cold Start
MODEL
MINI Cooper S produced up to 07/02
SITUATION
Customer may complain of the following:
^ Engine runs rough during the first 20 seconds of operation following initial cold start.
^ Engine hesitates/poor throttle response during first 20 seconds of operation following initial cold start.
CORRECTION
On a customer complaint basis only, reprogram the EMS2OOO engine control module using DIS/GT1 CD 31.0 or higher.
PROCEDURE
To reprogram the EMS2OOO control module:
1. Connect a BMW approved battery charger.
2. Connect DISplus/GT1 loaded with CD 31.0 or higher.
3. Select: Coding/Programming
4. Select: 5 Programming, then the right arrow
5. Select: 3 DME Programming, then the right arrow
6. Select Exchange Control Unit, then the right arrow
7. Display appears First determine and then program basic control unit, then the right arrow
8. Select 1 Determine basic control unit, then the right arrow. Automatic determination is going to be performed.
9. DME ESM2OOO is the faulty control unit still installed in the car?, select YES
10. Start automatic determination? select YES
11. Display appears: Compare chassis number displayed with number in the car. Chassis number..... Do numbers correspond? Select YES
12. Part number basic control unit 7 520 019/7 520 020 are displayed, then scroll down
13. Display appears: Followed part numbers (basic control unit) can likewise be used. A new program version is also programmed for these part numbers. Duration depends on control unit between 4 16 minutes, then scroll down
14. At this point vehicle data is stored in the tester for the automatic identification. Disregard screen prompt which refers to obtaining and installing a new basic control unit, and scroll to the left
15. Select: 2 Program basic control module, then right arrow
16. Follow instruction: Chassis number, enter the last 7 characters of VIN. Is the number correct? Select YES
17. Disregard the next instruction: Install new basic control module, just go forward by pressing the right arrow
18. Display will appear: There is new program version and new data version for this control unit. Depending on the control unit, programming may last between 4-16 minutes. First programming and then data are programmed. After programming, with diagnosis program, the fault memories have to be cleared. EWS alignment is automatically carried-out with reprogramming, then the right arrow
19. The next screen displays: The control module can be programmed X times, then the right arrow
20. Follow the command: Please enter reading mileage Entry correct?. Select: YES
21. DME EMS2000 Start automatic programming? Select: YES
22. When programming starts, the following message is displayed: EMS2000 Data programming active. Voltage terminal 30....
23. After successful programming, message is displayed: Programming completed. Important: Alignment must be carried out with EWS, so turn off ignition for 25 s., then the right arrow
24. Turn the ignition on. Carry the alignment, select YES
25. At this point an erroneous message is displayed: Alignment with EWS control unit cannot be carried out. Code EWS first. Disregard this message
26. Important: at this point turn ignition off and perform battery reset (disconnect battery cable) for 30 seconds. After that, connect battery and start engine.
27. [NEW] Then, recode EMS2000 (DME) control module: Select 3 ZCS/FA Coding.
28. [NEW] Select R50/R53, then the right arrow
29. [NEW] Select 1 Recoding, then the right arrow
30. [NEW] Select 95 MOTRONIC, then the right arrow.
31. [NEW] Follow instructions on the next screen for EMS2000 coding procedure. After coding is completed start the engine.
32. ESM2000 programming has been completed.
WARRANTY INFORMATION
Covered under the terms of the MINI New Vehicle Limited Warranty.