Mercedes-Benz Engine Oil Filter Element – OM651 Diesel

Specification Overview
Genuine Mercedes-Benz cartridge-style engine oil filter element. Designed specifically for the OM651 2.1L 4-cylinder diesel engine family, found across Mercedes-Benz passenger cars, SUVs, and commercial vans. The filter element uses high-density micro-fiber media to trap harmful contaminants, soot particles, and metallic wear debris while maintaining optimal oil flow and pressure.

• Type: Cartridge oil filter element with integral rubber seals

• Outer Diameter: 64 mm – 65 mm

• Inner Diameter: 31 mm – 31.5 mm

• Height: 110 mm – 115 mm

• Weight: 0.08 kg – 0.12 kg

• Material: High-density cellulose/synthetic blend media with rubber gaskets

• OE Numbers: A6511800109, 6511800109, 6511800009, A6511800009, 6511800309, A6511800309, 6511840025, A6511840025

• Supersession Information: Replaces previous part numbers A6511800009 and A6511800309

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Application & Engine Fitment

This filter is the factory-spec replacement for the OM651 series 2.1L 4-cylinder diesel engines, available in various power outputs from 95 hp to 204 hp.

Primary Engine Applications:

Comprehensive Model Fitment:

⚠️ Important: This filter is designed for diesel engines only. Do not use on petrol engines. Always verify your specific engine code before ordering.

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Service Life & Change Intervals (Technical Data)

Mercedes-Benz recommends replacing the oil filter at every engine oil service. The filter element is the primary defence against abrasive particles that cause premature wear to bearings, piston rings, timing chain, and turbocharger components.

Standard Recommended Interval:

• Every engine oil change (15,000 km – 25,000 km under normal conditions, per ASSYST calculation)

Critical Adjustment for Kampala (Severe Operating Conditions):
The operational climate (ambient temperatures 20°C–40°C), high humidity, stop-and-go urban traffic, and high dust loads classify as “Severe Duty” per MB Work Instructions. Under these conditions, the filter media loads with soot and contaminants faster.

Recommended Replacement Interval under East African operating parameters:

• Maximum: 10,000 km or 12 months (whichever occurs first)

• Turbo-diesel units (OM651): Do not exceed 8,000 km under heavy urban taxi/fleet operation to prevent oil bypass (filter clogging) and turbocharger oil starvation

⚠️ Important: Always replace the filter element at every oil change. The filter element comes with integral rubber seals – ensure these are lubricated with fresh oil before installation to prevent seal damage.

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Packaging & Pricing (Alps Autoz Kampala)

Often Replaced Together:
For a complete oil service, replace the following simultaneously:

• Engine oil (MB 229.52 5W-30 – OM651 engines with DPF require MB 229.52 specification)

• Oil drain plug washer (N007603014106 or equivalent)

• Engine air filter (per chassis application)

• Fuel filter (recommended every 2nd oil service)

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Technical Notes for the Workshop

• Installation: This is a cartridge-style element that fits inside a housing. Lubricate the rubber O-rings with clean engine oil before installation to ensure proper sealing and prevent damage.

• Seal Kit Included: The genuine filter includes all required rubber seals. Do not purchase a filter that does not include seals.

• Torque Specification: Housing cap torque: 25 Nm (refer to specific model service manual).

• Genuine vs. Aftermarket: Genuine MB A6511800109 is manufactured to OEM specifications. Equivalent aftermarket brands with cross-reference include:

  • MANN-FILTER HU 7010 z

  • Mahle OX 153/7D2 ECO

  • Bosch 0986AF1505

  • Hengst E11HD204

  • Febi Bilstein 31139

• Storage: Shelf life of 5 years in unopened, sealed packaging. Store in a dry environment away from direct sunlight.

• Compatibility Note: This filter is not compatible with OM642, OM654, or any petrol engines (M271, M272, M273). Use only for OM651 diesel applications.

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Alps Autoz – Kampala