Used Volkswagen Eos Glow Plugs

Only the diesel-engined Eos models have glow plugs — these are a diesel-only component used to pre-heat the combustion chamber before starting. The Eos was also sold with petrol engines (including 1.4 TSI, 2.0 TSI, and 3.2 V6 variants), and those petrol versions have no glow plugs whatsoever. If you have a petrol Eos and are chasing a cold-start or misfiring fault, you'll be looking at something else entirely, such as spark plugs or ignition coils.

The Eos was offered with a 2.0 TDI diesel engine, with engine codes including BKD, BMM, CBAB, CFHC, and CLJA across the production run from 2006 to 2015 — these are the variants that carry glow plugs. The engine code is the single most important detail when sourcing a used set, as plug specification can vary between codes even though the displacement looks the same on paper. You'll find the engine code on your V5C or via a VIN check, and you should quote it directly to the breaker.

The Eos received a facelift around 2010–2011, but for mechanical components like glow plugs, the engine code matters far more than the model year or facelift revision. If both cars share the same engine code — for example both running a CBAB — the plugs are very likely compatible, but if the codes differ (say BKD versus CFHC) the plug specification may well be different. Confirm the engine codes on both vehicles and check the part numbers with the breaker before buying across that production boundary.

Trim level makes no difference to glow plug fitment on the Eos — plugs are determined entirely by the engine code, not by whether the car is a base, Sport, or higher specification. The Eos trim structure did not involve different diesel engine options across trim grades in a way that would change the glow plug specification. Simply quote your engine code to the breaker and the trim name can be ignored for this purpose.

A 2.0 TDI Eos has a four-cylinder engine, so it requires four glow plugs — one per cylinder. When buying used, breakers will typically supply a full set of four, but confirm this when requesting your quote as individual plugs can sometimes be listed separately. It's generally advisable to replace all four at the same time rather than mixing old and new plugs of potentially different ages or conditions.

Quite possibly yes, because the Eos 2.0 TDI shares its engine family with the Golf, Jetta, and other VAG group models of the same era, meaning glow plug specifications often cross over when the engine codes match. The key check is that the engine code on the donor Golf matches your Eos — for example, a BKD from a Golf and a BKD from an Eos should use the same plugs. Confirm the part number with the breaker against both engine codes to be certain before purchasing.