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Mercedes Benz Engine Timing Gears 2700506100 For DE20 M276 DE35 OM642 DE30
| MOQ: | 50PCS |
| Price: | Negotiation |
| Standard Packaging: | Cardboard box or Wooden box |
| Delivery Period: | 5-15Days |
| Payment Method: | L/C,D/A,MoneyGram,D/P,T/T,Western Union |
| Supply Capacity: | 5000 |
Mercedes Benz Engine Timing Gears
,OM642 Engine Timing Gears
,2700506100
2700506100 Mercedes-Benz Engine Timing Gear FOR M272/M273/M274 DE20 LA/M276 DE35/OM642 DE30 LA
1. Product Purpose
Core Function:
As the central drive component of Mercedes' timing system, it precisely transmits crankshaft power to the camshaft to ensure:
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Perfect synchronization between valve timing and piston movement
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Optimal air-fuel ratio and combustion efficiency
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Coordination with fuel injection and ignition timing systems
Critical Applications:
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Mandatory replacement during engine overhaul
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Required when timing chain elongation exceeds 3%
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Essential repair item for P0016/P0017 fault codes
2. Features & Advantages
| Feature | Technical Advantage |
|---|---|
| Dual-phase alloy steel | Tough core (impact-resistant) + 60HRC surface hardness (300% wear resistance increase) |
| Asymmetric tooth profile | 7dB noise reduction vs conventional gears |
| Laser-etched timing marks | 90% improvement in installation error prevention |
| Nano-composite coating | 0.08 friction coefficient (40% lower than standard gears) |
| Hollow lightweight design | 18% reduced rotational inertia for better engine response |
3. Working Principle
Power Transmission Path:
Crankshaft gear → Timing chain → This gear → Camshaft → Valve train
Synchronization Precision:
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≤0.5° crankshaft angle deviation (equivalent to <0.1mm gear backlash)
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Dynamic compensation: Hydraulic tensioner maintains constant chain tension
4. Vehicle Compatibility Chart
| Engine Code | Compatible Models | Model Years | Special Notes |
|---|---|---|---|
| M274 DE20 LA | C300(W205)/GLC260(X253) | 2014-2018 | Must upgrade guide rails simultaneously |
| M276 DE35 | E400(W212)/ML350(W166) | 2010-2017 | Not for AMG-tuned versions |
| OM642 DE30 LA | GL350(CDI)/S350D(W222) | 2011-2019 | Requires sulfur-resistant grease |
5. Installation Precautions
Critical Steps:
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Position Locking:
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Use MB SST 000-589-00-30-00 to secure crankshaft at TDC
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Camshaft alignment holes must match perfectly (<0.2mm tolerance)
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Torque Procedure:
Stage 1: Pre-tighten 50Nm → Stage 2: Final 80Nm → Stage 3: Additional 90° rotation -
Prohibited Actions:
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Never use impact wrenches (causes micro-deformation)
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Stretch bolts are single-use only (MB mandatory standard)
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6. Common Issues & Solutions
| Symptom | Root Cause | Solution |
|---|---|---|
| Cold start "clicking" | PVD coating wear | Replace full timing set (chain+tensioner) |
| P0017 fault code | Gear keyway misalignment | Inspect crankshaft woodruff key |
| Abnormal oil consumption | Sealing surface deformation | Check cylinder head flatness (<0.05mm) |
| High-RPM power loss | Heat treatment defects | Verify part authenticity (counterfeit risk) |
