BMW i3 Exhaust System Replacement Parts
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A buyer's guide to used BMW i3 exhaust system
No two exhaust systems are quite the same across different vehicles, so getting the specifics right matters when you buy used, second hand or a replacement. Answer a few quick questions below and breakers will only quote if they have the exact matching part in stock:
- State which section you need
- State whether it's petrol or diesel
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Fitment questions
Does the BMW i3 even have an exhaust system – what parts should I be looking for?
The BMW i3 is a battery-electric vehicle (BEV) in its standard form, so it has no combustion exhaust system, catalytic converter, or DPF whatsoever. If your i3 is the range-extender variant (known as the i3 REx), it does have a small two-cylinder petrol engine and a very compact exhaust assembly, so that is the only version where an exhaust part search makes sense. Always confirm which variant you have before requesting quotes from a breaker.
Does a BMW i3 REx exhaust from an early car (2013–2017) fit the post-2017 facelift model?
The BMW i3 received a significant update around 2017–2018, and while the REx powertrain carried over, there were running changes to the engine ancillaries and emissions calibration across that boundary that could affect whether exhaust components interchange directly. You should name that boundary clearly to your breaker and ask them to check the part against your exact registration, as fitting a unit from the wrong side of that update may cause fitment or MOT issues. Never assume visual similarity means compatibility across a model revision.
Does the trim level – for example Lodge, Suite, or Atelier – affect which exhaust fits my i3 REx?
No, trim level does not affect exhaust fitment on the BMW i3 REx; Lodge, Suite, Atelier, and any other trim designation are purely interior and equipment grades with no bearing on the engine or exhaust specification. The parts you need to match are the engine code, the REx variant itself, and the model year. Expect no cosmetic differences between exhaust assemblies from different trims, as they are mechanically identical in this respect.
What details should I give a breaker when asking for a BMW i3 REx exhaust?
Give the breaker your full registration number so they can look up the exact engine code and build date, and confirm explicitly that you have the REx (range-extender) variant rather than the standard BEV. Year of manufacture and engine code are the key fitment details for the exhaust on this model. The more information you provide upfront, the better chance the breaker has of supplying a correctly matched unit.
Can I use a catalytic converter or DPF from a different year i3 REx on my car?
Catalytic converter and DPF interchange specifics are strong confirm-with-breaker territory on any vehicle, and particularly so on a niche low-volume model like the i3 REx where emissions equipment is tightly integrated with the engine management system. Fitting the wrong unit could result in MOT failure or warning lights, so do not rely on visual or dimensional similarity alone. Always confirm suitability against your exact registration with the breaker before purchasing.