Renault Kadjar Exhaust System: Specs, Fitment & Common Faults
On the Kadjar, if diesel, a genuinely serious mechanical chain: an EGR valve stuck closed can cause turbo bearing failure and catastrophic oil consumption.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — Rear silencer (aftermarket) Bosal 200-091 / Walker 13239
| Rear silencer (back box) — aftermarket | Bosal 200-091, 200-005 (accessories); Walker 13239 (690 mm), 23997 (970 mm), 17275 (840 mm), 01677 (615 mm); Ernst 522298; MTS 01.62510, 01.61064, 01.60691; Vegaz RS-258, RS-60, RS-92, RS-85, RS-44, RS-5, RS-39, RS-501 (sports muffler); Polmo 21.272, 02.15, 21.252; Izawit 26.002, 02.009. |
|---|---|
| Centre / intermediate silencer — aftermarket | Bosal 200-811, 200-269, 200-807, 200-341; Walker 22440, 22441, 22560, 22380; MTS 01.50108, 01.56880, 01.56280, 01.51350; Vegaz RS-28, RS-323, RS-40; Polmo 21.34, 21.74, 21.19, 21.563, 21.282; Izawit 26.305, 26.341; Asmet 10.068. |
| Front pipe / catalytic converter (DPF on diesels) — aftermarket | Bosal 090-304 (Euro 6); Walker 28879 (360 mm); Vegaz RK-801, RK-368; AS 30225, 30229, 74176; LRT 8629N; Quinton Hazell QCAT92271H; BM Catalysts BM92271H |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine parts against your VIN |
| Fitment notes | Engines: 1.2 TCe 130, 1.5 dCi 110, 1.7 Blue dCi 150 4WD. Several cat listings are older Renault Euro 2/3 parts, ignore. |
A Genuinely Serious Mechanical Chain Worth Understanding on dCi Diesels — Renault Kadjar Exhaust System
If your car has a dCi diesel engine, this is worth understanding properly: if the EGR valve sticks in the closed position, exhaust gas temperature rises considerably, which can cause the turbocharger's bearings to fail and allow engine oil to enter the induction system. Left unaddressed, this can lead to the engine consuming its own oil supply and eventually suffering catastrophic failure. Documented cases confirm a genuinely important lesson: several turbochargers have been replaced without the EGR valve being addressed at the same time, only for the new turbo to fail again quickly. If you're having turbo work done on a dCi engine, it's genuinely worth insisting the EGR valve is properly checked and, if faulty, replaced as part of the same job.
Genuine UK cost figures worth knowing: DPF cleaning has been quoted at an average of around £208 — worth getting as a benchmark before accepting a quote for full replacement.
Renault Kadjar Exhaust System: The Part That Announces Its Own Problems
On the Renault Kadjar, 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.
Renault Kadjar Exhaust System: Watch: Replacing It
FRENCH: exhaust sensor/hose fault on the 1.6 dCi, Kadjar named in the title; no English Kadjar exhaust video found
Renault Kadjar Exhaust System: What It Does
The Renault Kadjar'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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Renault Kadjar 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 Renault Exhaust System
The same part, covered across other Renault models.