Toyota Yaris common faults, MOT red flags & buyer's guide
XP130 (2011–2020) & XP210 (2020–) inc. Hybrid · Supermini
Arguably the most reliable used supermini in Britain — buy with confidence.
Toyota Yaris common faults
Each fault below is drawn from real owner reports and UK garage patterns for this generation — not generic used-car advice.
Hybrid battery cooling fan clogged
moderateThe 12V/hybrid battery cooling fan (behind the rear seat) clogs with dust and pet hair. Overheating shortens battery life.
Check for: Ask if the fan has been cleaned. Any 'red triangle' warning?
Typical cost: £40 DIY clean; £200+ if traction battery degrades
Rear beam corrosion (older cars)
moderatePre-2015 Yaris can suffer surface corrosion on the rear beam — cosmetic but check on MOT.
Check for: Look underneath at the rear axle.
Typical cost: £200 for treatment
Sat-nav / infotainment slow
minorToyota Touch 2 is dated but reliable.
Check for: N/A
Typical cost: N/A
MOT history red flags
If any of these appear on the last two MOTs, negotiate hard or walk away.
- Any 'brake pipe corroded' advisory
- Hybrid warning light history
Sharp questions to ask the seller
- Hybrid: has the cooling fan been cleaned?
- Any hybrid warning lights ever appeared?
- Service history with Toyota or independent Toyota specialist?
Got a specific Toyota Yaris in mind?
Paste the reg and we'll pull its full MOT history, cross-check against these faults, and tell you: buy, negotiate or walk away.