078 115 561 D Oil Filter Replaces MANN W 930/21 MAHLE OC 241 | for Audi A6 C5 1997-2005

078 115 561 D Oil Filter — Direct Replacement for Audi A6 C5 1997-2005

The 078 115 561 D is an OE-quality oil filter built for Audi A6 C5 (1997-2005). It is a drop-in replacement: same outer dimensions, same sealing profile and same mounting points as the original part, so no modification is needed at service time.

Vehicle Compatibility

Year range is a fitment guide for the A6 C5 generation that uses this part number. Always compare the number on your old filter with 078 115 561 D before ordering; engines and trim levels of the same model can use different elements.

Technical Specifications

Cross Reference

MANN W 930/21, MAHLE OC 241 — verified equivalents for the same element, recorded so buyers can match the number on the old part.

Why buyers choose this element

• Fit-first tooling — built from the original sample, so the seal seats without force.
• Stable filtration — uniform pleat spacing keeps pressure drop low across the service interval.
• Repeatable supply — produced in-house, the same specification is available on re-orders months later.
• Mixed-container friendly — can be consolidated with other filter numbers in one shipment to reduce freight per unit.

Questions buyers ask

Which vehicles does 078 115 561 D fit?
Audi A6 C5 built between 1997-2005. Where the same model was sold with several engines, match the number printed on the old element.

Is this the same as the original part?
It is an aftermarket equivalent, not a branded OEM part. Dimensions, media grade and sealing are matched to the original so it performs the same service function.

How do I order and what is the lead time?
This item is quoted on request rather than sold through instant checkout. Send the part number and quantity and we will confirm price, packing and shipping schedule for your destination.

Request a quotation

Tell us the quantity of 078 115 561 D you need and the destination port or address. We reply with unit price, carton size, gross weight and the next available production or stock date. Sample orders are accepted before volume orders.