Volkswagen Polo Common Faults & Problems (UK Buyer's Guide)
Mk5 & Mk6, 2009–2024 · Supermini
This is an independent guide to the Volkswagen Polo, written for used car buyers rather than sellers. The faults below come from owner reports, UK garage patterns and MOT history for this generation — not manufacturer marketing, and we take no commission from any dealer. Use it to spot the expensive problems before you hand over money.
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Common Faults
Each fault below is drawn from real owner reports and UK garage patterns for this generation — not generic used-car advice.
1.2 TSI timing chain stretch
criticalPre-2015 1.2 TSI engines can jump a tooth and bend valves.
Check for: Rattle on cold start; chain replacement invoices.
Typical cost: £700–£1,100
ABS pump and sensor failures
moderateABS warning lights on the Mk5 are common, often a wheel speed sensor but sometimes the pump.
Check for: Watch the dash lights go out after start-up.
Typical cost: £120 for a sensor, £600+ for a pump
Rear brake pipe corrosion
moderateCorroded pipes are a recurring MOT advisory that becomes a failure.
Check for: The last two MOT records — pipe corrosion tends to be noted before it fails.
Typical cost: £200–£400
What to Check Before Buying
Take this list to the viewing. Every point comes straight from the faults above.
- 1.2 TSI timing chain stretch: Rattle on cold start; chain replacement invoices.
- ABS pump and sensor failures: Watch the dash lights go out after start-up.
- Rear brake pipe corrosion: The last two MOT records — pipe corrosion tends to be noted before it fails.
MOT history red flags
If any of these appear on the last two MOTs, negotiate hard or walk away.
- 'Brake pipe corroded' advisories two years running
- ABS warning light noted at test
Sharp questions to ask the seller
- Has the cambelt or chain been done?
- Any ABS or airbag lights?
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