Citroen Berlingo Exhaust System: Specs, Fitment & Common Faults
On the Berlingo, a genuinely honest fact: the DPF additive never burns off, meaning even excellent driving habits can't prevent an eventual, expected filter service.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — Rear silencer (aftermarket) Bosal 135-121 / Walker 23688
| Rear silencer (back box) — aftermarket | Bosal 135-121, 135-001, 135-705, 135-707 (need accessories); Walker 23688 (1030 mm, 6.45 kg, code 53, with pipe), 21993 (820 mm, 6 kg, code 62), 22293 (690 mm, code 62), 23305 (660 mm, code 62); Asmet 09.091, 09.089, 08.079; MTS 01.60533 (660 mm, 7.25 kg), 01.69570 (740 mm); Vegaz PGS-412 (rear), CS-317, PGS-193 (640 mm); Polmo 04.130, 04.132, 04.232 (rear; 04.136 lists "model year to 2003", ignore) |
|---|---|
| Centre / intermediate silencer — aftermarket | Bosal 135-465 (centre); Walker 28832 (930 mm, code 52), 01489 (750 mm, code 52); Vegaz CS-11 (940 mm), CS-58 (570/600 mm), CS-71 (560 mm), FTS-325 (760 mm), FTS-342 (810 mm), PGS-118 (750 mm), PGS-118IMA (780 mm), PGS-70 (front); Ernst 515047 (930 mm, repair solution); MTS 01.50240 (1060 mm), 01.57810 (740 mm), 01.80750 (860 mm); Polmo 07.157 |
| Front pipe / catalytic converter (DPF on diesels) — aftermarket | or DPF: Bosal 090-263 (Euro 6, ECE), 090-590 (Euro 4, ECE); Walker 28100 (330 mm, with manifold, code 91), 28697 (540 mm), 28168 (420 mm), 28099 (440 mm, with pipe), all code 91; Vegaz CK-340 (Euro 6, OBD); BM Catalysts BM91785H (Euro 6, FK91785), BM91990H (Euro 5, non-approved); JMJ 1080084 (580 mm, engine DV6TED4 diesel), 1090124 (480 mm, 5.15 kg); Vegaz CR-239 is a repair pipe. |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine parts against your VIN |
| Fitment notes | Petrol 1.2 PureTech to 1.6 VTi and diesel 1.6 HDi/BlueHDi plus electric listed, no per-part fuel mapping |
A Genuinely Important, Honest Fact: Good Driving Habits Alone Won't Prevent Eventual DPF Service — Citroen Berlingo Exhaust System
It's worth knowing something distinct from the usual "just drive faster to regenerate" advice: diesel particulate filters on this platform rely on an additive (commonly referred to as Eolys, or cerine) injected into the fuel to help the trapped soot burn at a lower temperature during regeneration. This additive itself, however, never burns off — it accumulates as a genuine ash residue inside the filter permanently, regardless of how well the car has been driven. This means even a diesel driven mostly on motorways with excellent regeneration habits will eventually need the DPF professionally cleaned or replaced simply due to this ash buildup, typically somewhere in the region of 100,000-120,000 miles — this isn't a fault or a sign of poor maintenance, but a genuine, expected part of diesel particulate filter technology.
If you're chasing a specific EGR-related fault, real fault codes worth knowing include P0401 (insufficient EGR flow) and P0405 (EGR position sensor signal fault) — worth mentioning to whoever is diagnosing the car, since these point toward different specific parts of the system.
Citroen Berlingo Exhaust System: The Part That Announces Its Own Problems
On the Citroen Berlingo, you'll typically hear this fault developing long before you'd ever see it — a new rattle, an odd drone, noise levels creeping up from one week to the next. That early audible warning is a genuine head start on catching the problem before it worsens.
Citroen Berlingo Exhaust System: Watch: Replacing It
Previous-generation (2005) Berlingo, not B9; back box replacement.
Citroen Berlingo Exhaust System: What It Does
The Citroen Berlingo's exhaust does more than just carry gases away from the engine — it also handles noise reduction through the silencer and emissions treatment via a catalytic converter and particulate filter. That's why petrol and diesel versions can use entirely different systems.
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Citroen Berlingo 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 Citroen Exhaust System
The same part, covered across other Citroen models.