Car Parts Guide
EXHAUST SYSTEM Ford Mondeo · PARTS GUIDE

Ford Mondeo Exhaust System: Specs, Fitment & Common Faults

A confirmed, major current Ford-wide recall covers DPF cracking on diesel Mondeos built 2014-2023 — check your registration before anything else.

Illustration of a car exhaust system Illustration for editorial purposes
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OEM Part Number: confirm via VIN — Rear silencer (aftermarket) Bosal 154-187 / Walker 24054

Accuracy note: Covers the Ford Mondeo (Mk5 2014-2022) as listed in the UK aftermarket catalogues. Exhaust part numbers depend on engine, fuel, emissions standard (Euro 5 / Euro 6) and body — the catalogue listings below are aftermarket references for this generation and are not engine-filtered, so confirm the fit by your VIN or engine code before ordering. Walker 'code letter' values (52, 62, 91 etc.) must match the system fitted. Genuine numbers are only shown where a listing quotes one.
Rear silencer (back box) — aftermarketBosal 154-187; Walker 24054 (980 mm, code 52); Vegaz FS-525 (1000/1040 mm); MTS 01.97690 (1100 mm); Ernst 344111 (1060 mm); Hella 8LD 366 030-331
Centre / intermediate silencer — aftermarketWalker 23210 (990 mm); Bosal 154-133; Vegaz FS-571; Izawit 17.135; Ernst 310215
Front pipe / catalytic converter (DPF on diesels) — aftermarketBosal 090-206 (Euro 5/6, E57 103R 000372); Walker 23077 (610 mm); Ernst 761192 (625 mm); Vegaz FK-336 (Euro 6); BM Catalysts BM91752H (ceramic, Euro 6)
Genuine (OE) numbers quotedNone quoted in catalogue listings — order genuine parts against your VIN
Fitment notesEngines 1.0-2.0 EcoBoost, 1.5-2.0 TDCi, 2.0 EcoBlue listed at category level only.

A Genuinely Major, Current Recall Worth Checking If You Have a Diesel — Ford Mondeo Exhaust System

This is worth checking directly against your registration if you own a diesel Mondeo: Ford has confirmed a major, current recall (reference 24E06, part of the broader KBA 14555R campaign) addressing a design-related weakness in the Diesel Particulate Filter material that can develop hairline cracks over its service life. This isn't a minor administrative recall — a cracked DPF lets unburned particulate matter bypass the filter, which can cause a failed MOT emissions test and potential Clean Air Zone compliance issues. The recall covers over 1.2 million Ford diesel vehicles worldwide across nearly the entire range — including the Mondeo — built between 2014 and 2023.

What Ford's remedy involves: a free software recalibration to the DPF regeneration process, along with inspection and, where necessary, filter replacement — carried out at no charge at any authorised Ford dealer. Replacement filters carry a genuinely generous 10-year/160,000km warranty. Check your registration at gov.uk/check-vehicle-recalls, and don't ignore a spanner or engine management warning light if you haven't yet had this checked.

Ford Mondeo Exhaust System: The Part That Announces Its Own Problems

On the Ford Mondeo, most faults are things you'd spot visually first, but this one usually announces itself acoustically — a rattle, a drone, a noticeable jump in noise levels. That's actually helpful, since it means you'll likely notice trouble well before it gets serious.

Before you buy: exhaust configuration differs significantly by engine size, fuel type and whether your car has a particulate filter. Always confirm against your VIN before ordering.

Ford Mondeo Exhaust System: Watch: Replacing It

🎬 Watch: How to replace an exhaust back box on a Ford Mondeo 2.0 ltr Tdci (exact (unconfirmed))

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Appeared in a Mk5 search; title does not state generation, check before use

Ford Mondeo Exhaust System reference plate

Ford Mondeo Exhaust System: What It Does

Three jobs happen inside the Ford Mondeo's exhaust system: routing burnt gases away from the engine, quieting them through the silencer, and treating emissions via a catalytic converter and particulate filter. Petrol and diesel variants often need completely different systems to meet their respective emissions requirements.

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Ford Mondeo Exhaust System: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Exhaust System Guide for warning signs and fault codes to watch for, confirming fitment against your VIN, and which aftermarket brands are worth trusting.

More Ford Exhaust System

The same part, covered across other Ford models.