Used Mercedes-Benz A-Class Catalytic Converter
Get quotes for a used or replacement Mercedes-Benz A-Class catalytic converter. Genuine second hand parts from UK vehicle dismantlers - free request, breakers with stock reply direct.
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What to check when buying a used Mercedes-Benz A-Class catalytic converter
A used catalytic converter that fits one vehicle won't always fit another - even within the same model range. These questions help breakers match stock to your exact vehicle before they quote:
- State whether it's petrol or diesel
- State the engine code if known
Other used Mercedes-Benz A-Class parts
- Used Mercedes-Benz A-Class Exhaust System
- Used Mercedes-Benz A-Class EGR Valve
- Used Mercedes-Benz A-Class DPF
- Used Mercedes-Benz A-Class Lambda Sensor
- Used Mercedes-Benz A-Class Turbo
- Used Mercedes-Benz A-Class Fog Light
- Used Mercedes-Benz A-Class Steering Rack
- Used Mercedes-Benz A-Class Alloy Wheels
- Used Mercedes-Benz A-Class Spoiler
- Used Mercedes-Benz A-Class Wing
- Used Mercedes-Benz A-Class Radiator
- Used Mercedes-Benz A-Class Alternator
Used catalytic converter for other Mercedes-Benz models
Fitment questions
Does a catalytic converter from an older A-Class fit my newer one, say a W168 or W169 cat on a W176 or W177?
No — the A-Class has spanned four main generations (W168 1997–2004, W169 2004–2012, W176 2012–2018, W177 2018–present), and the exhaust systems are completely different between them, so cats do not cross generations. Even within a generation there are facelift changes and different engine codes that affect which cat fits, so always confirm the exact part against your registration with the breaker.
Will a catalytic converter from a pre-2015 A-Class W176 fit a post-2015 facelift W176?
The W176 received a facelift in 2015, and while the engine line-up carried over in many cases, emissions calibration and exhaust component specifications can differ across that boundary. Whether a specific cat interchanges across the 2015 facelift cut-off is strong confirm-with-breaker territory — give the breaker both registration numbers and ask them to cross-reference engine codes before agreeing a sale.
Does my Mercedes A-Class diesel have a catalytic converter or just a DPF?
Diesel A-Class variants typically have both a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF) in the exhaust system, so yes, a form of catalytic converter is present on diesel engines. Petrol engines carry a conventional three-way catalytic converter. Whether a used unit from another car will interchange correctly with yours depends heavily on engine code and emissions standard (Euro 5 or Euro 6), so confirm the specifics with the breaker against your registration.
Does the trim level affect which catalytic converter fits — for example, does an SE cat fit an AMG Line or a Sport?
Trim level — whether SE, Sport, AMG Line, or Executive — does not determine which catalytic converter you need; what matters is the engine code and emissions era. A used cat sourced from a lower trim car with the same engine code and Euro standard is the right starting point, though the breaker should confirm interchange against your registration before you buy.
Can I use a catalytic converter from a petrol A-Class on my diesel A-Class, or vice versa?
No — petrol and diesel catalytic converters are fundamentally different in design and chemistry and are not interchangeable. Fitting the wrong type would not clean emissions correctly and your car would fail its MOT emissions test. Always make sure the breaker knows whether your car is petrol or diesel, and confirm the engine code matches, before purchasing a used cat.
I have a 2019 W177 A-Class — will an older W176 catalytic converter fit it?
No, the W177 (2018–present) is a completely different generation from the W176 (2012–2018) with a redesigned engine range and exhaust layout, so cats from the W176 will not fit a W177. Within the W177 itself, engine code and Euro 6 sub-standard can still affect which specific unit is correct, so confirm the part against your exact registration with the breaker rather than relying on generation alone.