Nissan Micra Exhaust System: Specs, Fitment & Common Faults
On the Micra, if diesel, a genuinely important warning: the DPF light going off after a short drive doesn't mean it's fixed.
Illustration for editorial purposes
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OEM Part Number: confirm via VIN — Rear silencer (aftermarket) Bosal 145-117 / Walker 23516
| Rear silencer (back box) — aftermarket | Walker 23516 (870 mm), 23464 (900 mm), 17944, 22624 (all code 52); Bosal 145-117, 145-125, 145-193, 145-327; Ernst 695039, 695015; Asmet 14.030; MTS 01.60657, 01.92170; Vegaz DS-283, DS-330; Izawit 33.052 |
|---|---|
| Centre / intermediate silencer — aftermarket | Bosal 145-001; Ernst 048002; Vegaz DS-293, DS-216, RS-363; Polmo 15.21; No Walker. |
| Front pipe / catalytic converter (DPF on diesels) — aftermarket | Bosal 090-304, 090-280 (Euro 6); Walker 28879 (code 91); BM Catalysts BM92747H, BM92271H, BM92225H; JMJ 1091757 (300 mm, OBD, Euro 6); Vegaz RK-368, RK-399. |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine parts against your VIN |
| Fitment notes | Petrol 0.9 IG-T and 1.0 plus 1.5 dCi diesel and LPG listed; not engine-specific per part. |
A Genuinely Important Warning: The Light Going Off Doesn't Mean It's Fixed — Nissan Micra Exhaust System
This is genuinely worth understanding if you've seen the amber DPF warning light appear, then go off again after a shorter drive: this doesn't necessarily mean the problem is solved. Clearing the light typically requires sustained driving at speeds above 40mph for at least 20-30 minutes — a shorter drive that clears the light temporarily may only be achieving a partial, incomplete regeneration. If the underlying cause doesn't change, the light will keep returning, and each partial cycle loads a little more unburned soot until eventually even a proper motorway run can't clear the filter.
It's also worth knowing that early diesel models on some platforms don't have the same self-regenerating capability that later generations do — meaning older examples can't necessarily "drive out" a blocking DPF the same way newer cars can.
Nissan Micra Exhaust System: The Part That Announces Its Own Problems
On the Nissan Micra, this is one of the few parts where your ears will catch a problem before your eyes do — a new rattle, a drone, noise that simply wasn't there a week ago. That's a genuine advantage, since it gives you an early warning most other faults don't offer.
Nissan Micra Exhaust System: Watch: Replacing It
Generation not confirmed from title (may be older Micra); flag
Nissan Micra Exhaust System: What It Does
On the Nissan Micra, burnt gases leave the engine through the exhaust system, which quiets them via the silencer and treats emissions through a catalytic converter and particulate filter before anything exits the tailpipe. Petrol and diesel versions frequently use entirely different systems, since their emissions treatment needs aren't the same.
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Nissan Micra 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 Nissan Exhaust System
The same part, covered across other Nissan models.