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.
2013 Mercedes Benz B250FACTORY OEM SERVICE PROCEDURE
Electrical System - Engine - 246 Chassis
- General Information
- Safety Precautions
- Testing & Repair
- Remove/install camshaft Hall sensor - AR15.10-P-2000MT
- Remove install crankshaft pulse ring - AR15.12-P-0001MT
- Remove/install ignition coils - AR15.12-P-2003MT
- Remove/install crankshaft Hall sensor - AR15.12-P-2136MT
- Remove/install knock sensors - AR15.12-P-2184MT
- Remove/install starter - AR15.30-P-7100NKB
- Check regulator and alternator - AR15.40-P-5000NKB
- Test alternator charging current - AR15.40-P-5011NKB
- Remove/install alternator - AR15.40-P-5032MT
- Remove/install alternator belt pulley - AR15.40-P-5710NKB
- Remove/install regulator for alternator - AR15.40-P-5760NKB
- Remove/install coolant temperature sensor - AR15.60-P-2711MT
- Test & Adjustment Values
- Maintenance
- Torque Specifications
- Wiring Diagrams
- Special Tools
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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