Vehicle summary
ULEZ status is estimated based on fuel type and registration year. It may not reflect the actual emission standard of this vehicle. Check with TfL for a definitive answer.
At a glance
This 2017 Skoda Fabia Petrol 999cc has had 9 MOT tests on record, passing 8 and failing once (89% pass rate). It has 58,637 miles on the clock, averaging 8,452 miles per year, around the UK average of 7,400. The 1.0 TSI engine is known for 1. carbon buildup on intake valves and 2. turbocharger actuator/wastegate linkage failure. Common Skoda Fabia issues include electric window switches and mechanisms and infotainment system (bolero unit).
MOT & Mileage History for KN17 BYY
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failure recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
About average| Latest reading | 58,637 miles |
| Reading date | |
| Miles last year | 9,832 |
| Average per year | 8,452 |
| Mileage consistency | Consistent |
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Full MOT Test History 9 tests on record
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Reported issues for this Skoda Fabia
These are the most commonly reported problems on Skoda Fabia models (2014–2021), based on owner reports and workshop data across the UK.
Electric window switches and mechanisms
Window switches corrode from water ingress (rain splashes when windows open), causing intermittent failure; window motors or regulators also wear prematurely. · Typical repair: £150-£300 (switch replacement £100-£150 parts/labour; full regulator £200-£300 at indie garage).
Infotainment system (Bolero unit)
Software glitches, overheating, or water/corrosion damage to connections lead to freezing, blackouts, or total failure. · Typical repair: £200-£500 (software update/diagnostic £100-£200; full unit replacement £400-£500).
Instrument cluster wiring
Faulty wiring harness in the cluster corrodes or chafes, causing intermittent power loss. · Typical repair: £250-£450 (rewire/diagnostic £200-£300; cluster repair £300-£450).
Rear door seals
Rubber seals degrade or misalign, allowing water leaks into rear footwells. · Typical repair: £100-£250 (seal replacement both sides £80-£150 parts/labour).
1. Carbon Buildup on Intake Valves
Direct-injection petrol engines like the CHZB lack fuel spray across the intake valves during the induction stroke. Without this natural cleaning action, carbon deposits accumulate on the valve stems and seats, restricting airflow.[2]
2. Turbocharger Actuator/Wastegate Linkage Failure
The actuator linkage connecting the wastegate solenoid to the wastegate valve becomes faulty or loose, causing loss of boost control. Many repair shops misdiagnose this as full turbocharger failure and recommend a costly replacement (€1,000+) when only the actuator arm needs repair (€150).[3]
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Vehicle Details
| Registration | KN17 BYY |
| Make | Skoda |
| Model | Fabia |
| Colour | Red |
| Fuel type | Petrol |
| Engine | 999cc |
| Year | 2017 |
| First registered | |
| Area code | KN — Luton, Luton and Northampton |
| Age identifier | 17 — March 2017 to August 2017 |
More KN17 B plates
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About KN17 BYY
What car is KN17 BYY?
KN17 BYY is a red Skoda Fabia, petrol (999cc). First registered in Luton in 2017.
What is the mileage of KN17 BYY?
The last recorded mileage for KN17 BYY was 58,637 miles, recorded on 26 May 2026 during its most recent MOT test.
Has KN17 BYY passed its MOT?
KN17 BYY has had 9 MOT tests with an 89% pass rate (8 passes, 1 failure). It last passed on 26 May 2026.
Is KN17 BYY ULEZ compliant?
Based on its fuel type and registration year, KN17 BYY is likely ULEZ compliant. Petrol post-2005 (Euro 4). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is KN17 BYY?
KN17 BYY is approximately 9 years old. Age identifier 17 means registered between 1 March 2017 and 31 August 2017.