Skoda Yeti Exhaust System: Specs, Fitment & Common Faults
On diesel Yetis, a genuine DIY fix — cleaning a gummed-up EGR valve with carb cleaner — resolves many faults before a costly replacement is needed.
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OEM Part Number: confirm via VIN — Rear silencer (aftermarket) Bosal 233-071 / Walker 21342
| Rear silencer (back box) — aftermarket | Walker 21342 (1070 mm, code 53), 22070 / 22079 (960 mm, code 52); Bosal 233-071, 233-589; MTS 01.69790, 01.67690; Vegaz SKS-5, SKS-67IMA, VS-327; Polmo 01.124; Izawit 23.102, 23.091; Asmet 04.093 |
|---|---|
| Centre / intermediate silencer — aftermarket | Bosal 220-025, 105-109, 105-111, 220-015; Walker 21575 (790 mm, code 52), 71341 (1000 mm, code 53); Ernst 161145 (640 mm), 114172, 153003, 202046, 202022; MTS 01.59810, 01.80390; Vegaz SKS-118ERNS, SKS-30AT, VS-293AT; Polmo 24.78, 30.233, 01.106; Izawit 23.034, 18.030, 15.009, 18.022 |
| Front pipe / catalytic converter (DPF on diesels) — aftermarket | or DPF: Bosal 090-842, 090-840 (Euro 5, Blue Angel, E19-103R-000053), 090-229 (Euro 5, E19-103R-000051); Walker 28130 (code 91); Vegaz VK-381QP (Euro 5, OBD, 540 mm); BM Catalysts BM91685H (FK91685); JMJ 1091674, 1091659, 1091706 |
| Genuine (OE) numbers quoted | None quoted in catalogue listings — order genuine parts against your VIN |
| Fitment notes | Petrol 1.2-1.8 TSI and diesel 1.6/2.0 TDI incl. 4x4; no per-part mapping. |
A Genuine DIY Fix Worth Trying Before Paying for a New EGR Valve — Skoda Yeti Exhaust System
If your diesel is running roughly with a check engine light, and an EGR fault is suspected, it's genuinely worth trying a clean before paying for a replacement valve: removing the EGR valve and cleaning it with carb cleaner and a toothbrush to clear accumulated carbon deposits resolves the issue for a meaningful number of owners, and it's a straightforward job most confident DIYers can tackle with basic tools. This won't fix a genuinely failed valve (stuck open, electrically dead, or physically cracked), but a valve that's simply gummed up with carbon build-up — a common outcome of regular short-journey, stop-start driving — often responds well to this simple clean.
Worth knowing directly: a badly blocked DPF is sometimes caused by an underlying EGR fault preventing the car from completing natural regeneration in the first place — treating both together, rather than just cleaning or replacing the DPF alone, gives a genuinely better chance of resolving the fault for good.
Skoda Yeti Exhaust System: The Part That Announces Its Own Problems
On the Skoda Yeti, sound is usually the first clue here, ahead of any visual sign — a rattle, a drone, noise that's crept in gradually or arrived overnight. It's one of the more forgiving faults in that sense, since your ears will likely flag it before it becomes a bigger problem.
Skoda Yeti Exhaust System: Watch: Replacing It
exhaust joint replacement
Skoda Yeti Exhaust System: What It Does
The Skoda Yeti's exhaust system handles three things at once: clearing burnt gases from the engine, cutting noise via the silencer, and treating emissions through a catalytic converter and particulate filter. Because petrol and diesel emissions requirements differ, it often uses genuinely different exhaust systems depending on engine type.
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Skoda Yeti 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 Skoda Exhaust System
The same part, covered across other Skoda models.