Parts Guide
EXHAUST SYSTEM Renault Kadjar · PARTS GUIDE

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 of a car exhaust system Illustration for editorial purposes

OEM Part Numbers

Accuracy note: genuinely worth knowing: aftermarket "sports" or performance exhaust systems for the Kadjar can affect MOT compliance if they remove or bypass the catalytic converter, DPF, or other emissions equipment — confirm any aftermarket system is emissions-legal for road use before fitting, since a louder exhaust alone isn't automatically an MOT failure but removed emissions equipment usually is.

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.

A genuine, useful account worth knowing about diagnostic thoroughness: one documented case saw an engine management light misdiagnosed by an initial garage as simply needing a software update, when a proper DPF pressure test revealed the filter was completely blocked despite not showing the fault code that would normally be expected. The actual root cause included a stuck-open thermostat contributing to oil dilution with fuel — worth insisting on a full diagnostic picture rather than accepting the first, simplest explanation.

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.

The Part That Announces Its Own Problems

Unlike a lot of the parts on this site, this is one where you'll usually hear the fault before you see it — a rattle, a drone, a sudden increase in noise that wasn't there last week. That's actually useful, since it gives you a head start on catching problems early.

Renault Kadjar Exhaust System reference plate
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.

What It Does

The exhaust system channels burnt gases away from the engine, reduces noise through the silencer, and on most modern cars, treats emissions through a catalytic converter and particulate filter before gases exit the tailpipe. Petrol and diesel versions of the same model often use entirely different systems due to different emissions treatment requirements.

Shop for This Part on eBay

Renault Kadjar Exhaust System Pipe Gasket Flange Seal 206928H30A Genuine Renault Kadjar Exhaust System Pipe Gasket Flange Seal 206928H30A Genuine GBP 20.14 Renault Kadjar 2015 - 2022 1.5 Diesel Exhaust System 20100 4EA3A Renault Kadjar 2015 - 2022 1.5 Diesel Exhaust System 20100 4EA3A GBP 70.00 EXHAUST SYSTEM MIDDLE SILENCER FITS NISSAN QASHQAI II RENAULT KADJAR 12/16 EXHAUST SYSTEM MIDDLE SILENCER FITS NISSAN QASHQAI II RENAULT KADJAR 12/16 GBP 114.38 Rear Muffler Silencer Tail Pipe Fits Nissan Qashqai Renault Kadjar 201004EA3A Rear Muffler Silencer Tail Pipe Fits Nissan Qashqai Renault Kadjar 201004EA3A GBP 139.91 RENAULT KADJAR MK1 1.2 PETROL EXHAUST SYSTEM SILENCER BOX 201004EA5A RENAULT KADJAR MK1 1.2 PETROL EXHAUST SYSTEM SILENCER BOX 201004EA5A GBP 79.90 Renault Genuine Exhaust System Pipe Gasket Alaskan Kadjar Koleos MK2 Pulse Renault Genuine Exhaust System Pipe Gasket Alaskan Kadjar Koleos MK2 Pulse GBP 20.02 Rear Muffler Silencer Insert Fits Nissan Qashqai Renault Kadjar EuroFlo EXDN3124 Rear Muffler Silencer Insert Fits Nissan Qashqai Renault Kadjar EuroFlo EXDN3124 GBP 84.17 Renault Clio MK5 Exhaust System Clamp Pipe Clamping Piece 208253737R Genuine Renault Clio MK5 Exhaust System Clamp Pipe Clamping Piece 208253737R Genuine GBP 38.46

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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.