febi bilstein 30533 Radiator Expansion Tank Cap, Plastic, 2 bar
Product description
Choosing a replacement cap is mainly about getting the right vehicle fit, while keeping the part’s pressure rating in view. The febi bilstein 30533 is a plastic radiator expansion tank cap with a listed opening pressure of 2 bar, intended for vehicle-specific applications rather than universal use.
It is listed for a range of Mercedes-Benz models, but the fitment details vary. Check the vehicle identification and restrictions before ordering, the model name alone may not be enough to confirm suitability.
How it fits
The supplied application information names Mercedes-Benz A-Class and B-Class models, along with C-Class, E-Class, Vito and Sprinter variants, among others. The shorter compatibility highlights and the more detailed application list do not match one-for-one, so treat the list as a starting point rather than confirmation for every vehicle in those ranges. Use your vehicle identification to check the exact application and any restrictions.
This is a single replacement cap, not a wider cooling-system repair kit. If you are replacing a worn or faulty cap, confirm that the 30533 and its 2 bar opening pressure are appropriate for your vehicle before fitting it. The manufacturer advises that repair work should be carried out by trained professionals.
Where it shines
The straightforward appeal is a vehicle-specific replacement from febi bilstein, with its material and opening pressure stated clearly. That makes it easier to compare with another replacement part when you already know the required application. A universal-purpose approach may suit someone seeking a broadly usable part, but this cap is listed for particular vehicle applications, so exact fitment should take priority over assuming it will suit a similar model.
Buyer feedback is positive about fit and day-to-day function, with some customers saying the cap matched the original part or helped stop coolant leaks. There are also reports of durability problems, including caps breaking or failing to seal. Those are individual customer experiences rather than a guarantee of how this part will perform, but they are worth weighing alongside the fitment check.
Worth considering if you need a plastic replacement cap and can confirm the 30533 is listed for your exact vehicle. You may want to skip it if the application cannot be confirmed or if you need a broader repair kit rather than a cap alone.
Key specifications
- Name: febi bilstein 30533 radiator expansion tank cap
- Type: Vehicle-specific replacement cap
- Material: Plastic
- Colour: Black
- Opening pressure: 2 bar
- Dimensions: 7 x 7 x 3 centimetres
- Weight: 0.06 kg
- What’s included: 1 cap
Buying verdict
The 30533 is worth considering when the vehicle-specific application matches and you want a replacement cap with a stated 2 bar opening pressure. Its listed compatibility spans many Mercedes-Benz models, but that breadth should not be taken as universal fitment, verify the exact vehicle details before purchase. If the fit checks out, it is a focused replacement part. If the application remains uncertain, choosing a cap confirmed for the vehicle is the safer route.