Mercedes-Benz Citan Oil Cooler Replacement Parts

Yes, the Citan does have an oil cooler on its diesel engine variants — the 1.5-litre CDI engines (including the 109 CDI and 111 CDI) are equipped with an oil cooler as part of the engine's thermal management system. Petrol-engined Citans are far less common in the UK and may not share the same setup, so if you have a petrol variant confirm with the breaker whether an oil cooler applies to your specific engine. The engine code from your V5 or a VIN check is the most reliable way to establish exactly what cooling arrangement your Citan has.

The Mercedes-Benz Citan W415 generation ran from 2012 through to 2021, so both a 2013 and a 2019 example fall within the same generation — however, there were running production changes during this period that could affect ancillary components like the oil cooler and its mounting. Give the breaker both registration numbers or, better still, both engine codes, and ask them to cross-reference before purchasing. Do not assume same-generation always means direct swap on a mechanical ancillary like this.

Trim level and body style do not affect oil cooler fitment — what matters is the engine code, not whether your Citan is a panel van, Tourer, or Mixto. Two Citans with identical engine codes should use the same oil cooler regardless of how the body or interior is specified. Focus your search on matching the engine code exactly rather than worrying about trim badges.

The K9K family covers the 1.5 CDI engines used across the Citan W415 range, and oil coolers within that family are broadly related — but sub-variants of the K9K exist and there were mid-production changes that could mean differences in the cooler or its connections. Provide your full engine code (including the suffix, e.g. K9K 608 or K9K 612) to the breaker so they can confirm the exact match. Year of manufacture is also worth sharing because even the same sub-code could see running changes during the W415's production run.

The W415 Citan was co-developed with Renault and shares significant mechanical architecture with the Renault Kangoo Mk2 and the Nissan NV250, including the 1.5 CDI / dCi engine family. Parts cross-referencing between these platforms is common in the breaker trade, and an oil cooler with the same engine code may well be compatible — but confirm this directly with the breaker against your specific engine code and build date, as mountings and ancillary connections can vary between manufacturers' implementations of the same base engine.

A used oil cooler from a reputable breaker is a common and cost-effective repair on the Citan, and UK dismantlers routinely supply these parts. Ask the breaker about the mileage and condition of the donor vehicle, and have the part inspected for corrosion or damage to the sealing faces before fitting, as a leaking oil cooler can contaminate coolant or cause oil loss. Always have the part fitted and the system pressure-tested by a qualified mechanic to confirm there are no leaks before returning the vehicle to normal use.