Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Perform SCN Coding In Engine Control Unit (2017110004)
Reference number: 2017110004
PERFORM SCN CODING IN ENGINE CONTROL UNIT
SERVICE CAMPAIGN BULLETIN
| MERCEDES-BENZ: | Model 166 with code 805 |
SERVICE INFORMATION
- Ensure use of the following versions of XENTRY Diagnosis/XENTRY DAS:
Use BD/DVD (07/2017 ) or higher XENTRY Diagnosis/DAS version .
- Please make sure to follow the operation steps exactly as described in XENTRY/DAS.
- Use battery charger to ensure sufficient power supply of vehicle on-board electrical system battery (greater than 12.5 V).
- If XENTRY/DAS is already connected to the vehicle, start with operation step 2.
If two or more software updates or SCN codings are performed during a workshop visit, the operation items 02-4762 and 02-5058 can only be invoiced once for each workshop order!
WORK PROCEDURE
- Connect XENTRY/DAS.
- Perform SCN coding in engine
control unit.
To do so, select menu item "Control units view - Drive type - Motor electronics (ME-SFI) - Adaptations - Control unit update - Update SCN coding".
Then follow the user guidance in XENTRY Diagnosis/DAS.
- Disconnect XENTRY/DAS.
OPERATION TEXT AND FLAT RATE
| Operation no. | Operation text | Flat rate | Accounting no./damage code | ||||
|---|---|---|---|---|---|---|---|
| 02-9446(1) | Perform SCN coding in engine control unit (with XENTRY/DAS connected) Acc. no.: 5499242; code: 1709P54C42 | 0.1 h | 54 992 42 | ||||
| 02-4762(2) | Connect/disconnect vehicle diagnosis system (XENTRY/DAS) | 0.1 h | 54 992 42 | ||||
| 02-5058(2) | Connect/disconnect battery charger (with XENTRY/DAS connected) | 0.1 h | 54 992 42 | ||||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
