Oil Separator Repair Kit with 70mm Diaphragm - Mercedes / Chrysler / Jeep - A6420100591

This oil separator repair kit includes a 70 mm crankcase ventilation diaphragm. It repairs the worn ventilation element in the listed Mercedes, Chrysler and Jeep assemblies when the housing remains serviceable. A faulty membrane can disturb crankcase pressure, admit unwanted air and contribute to oil consumption or unstable idle.

Applications

• A6110160334 PCV crankcase ventilation valve - w210, s210, w163, w639, c209, w220, v220, w203, s203, w463, c203
• A6110160134 Crankcase ventilation oil separator - w202, w210, s210, w901, w902, w903, w904, w905, w906
• A0001801015 Pressure valve - w163, w211, w220, v220, w463
• A6420100591, A6420100391, A6420101891, A6420102091 Pressure regulating valve - w164, x164, w203, s203, w204, s204, c204, x204
• A6110160234 oil separator - Vito w638
• A6680160534, A6680160334, A6680160434 oil separator - w168, w414
• A6420100291, A6420101991 Ventilation valve - Vito w639, Viano w639, Sprinter w906
• 5175514AB, 68188865AA, 31382010G, 05080116AA, K05080116AA, 5080116AA, 5066845AA, 5114348AB - crankcase ventilation CHRYSLER 300, JEEP GRAND CHEROKEE, JEEP COMMANDER
• Mercedes-Benz S-Class / C-Class / E Class.

Ventilation Symptoms to Investigate

• Whistling or excessive crankcase vacuum.
• Unstable engine idle.
• Increased engine oil consumption.
• Oil deposits in the intake.
• Exhaust smoke after warm-up.
• Mixture faults associated with unwanted air.

Inspect the ventilation system and confirm the faulty component; symptoms alone do not prove that the membrane or valve is the cause.

Diaphragm and Engine Designations

Diaphragm diameter: 70 mm; reference 026012/24. Engine designations: OM 642, OM 611, OM 612, OM 613, OM 646, OM 668, OM 628. Reference form: A 642 010 18 91. Match the exact separator and valve application above.

Repair Scope

Repairing a worn diaphragm or ventilation element can restore crankcase ventilation and reduce unwanted air entry. A separate repair is suitable only when the housing remains serviceable. Inspect the cover or separator body and ventilation hoses for cracks; a damaged housing may require replacement of the assembly. Increased oil consumption may have other engine causes.

Important Before Ordering

Compare the original part number, marking, shape and mounting design before ordering. A model name alone does not confirm the required version.

FAQ

What is the diaphragm diameter?

70 mm; diaphragm reference 026012/24.

How should I select the assembly?

Compare the full original separator or valve reference with the matching application group, diaphragm shape and seating.

Part Number / PN

A6420101891,A6420100391,A6680160334,68188865AA,31382010G,05080116AA,K05080116AA,5080116AA,5066845AA,A6110160334,A6420102091,A6680160434,A6420101991,5114348AB,026012,A6110160134,A0001801015,A6420100591,A6110160234,A6680160534,A6420100291,6110160134,6110160334,0001801015,31382009f,6420100591,611016034,6110160234,6680160534,5175514ab,6420100191,6420100891,6420100691,hr6110160334a,a6291800315,6291800315,420100591

SKU: KLA6420100591.

• Mercedes

Returns and exchanges

Request a change-of-mind return within 14 calendar days of delivery, then send the goods within 14 calendar days of notifying us. Our voluntary return option applies to unused, uninstalled, complete goods in their original condition and packaging. Exchanges are subject to availability and agreement.

The customer pays change-of-mind return shipping. No restocking fee applies. Refunds and original delivery charges are handled under our Refund & Return Policy and applicable law.

Faulty, damaged or incorrect goods

Email contact-us@klifex.net with your order details and a description of the problem. These claims are separate from change-of-mind returns. Where we are responsible, we bear the required remedy and return costs. Installation alone does not remove mandatory defect rights.

Your legal rights

Applicable statutory rights take precedence, including EU/EEA and UK withdrawal rights and legal guarantees. Necessary inspection does not remove a statutory withdrawal right; deductions for excessive handling must reflect an actual, evidenced loss of value.

Contact us for the correct return address before shipping. Our legal address is not a return address.

Read the full Refund & Return Policy