1.4 and 1.6 petrol: the plastic belt tensioner breaks
It does not show up on every car. Check before you buy.
critical
severity
not available
mileage
1
sources
1 source next to the write-up.
The fault
How you spot it
In the 1.4 and 1.6 litre petrol engines the timing belt tensioner is plastic. If it breaks, the belt jumps and the engine is badly damaged inside.
The tensioner and the rollers have to be replaced along with the belt. But many cheap belt changes replace only the belt, and the next owner knows nothing about it for years.
Saying "the belt change was done" is not enough. The tensioner has to be on the invoice too.
Which model
Who it affects
The card opens the generation, the engine or the transmission.
Generations and models
2 generations.
SEAT
I
Altea
Thomas doerfer / CC BY 3.0
SEAT Altea I
2004–2009
SEAT
I.5
Altea
SEAT Altea I.5
2009–2015
Checklist
1.4 and 1.6 petrol: the plastic belt tensioner breaks
What you would check for this fault. Take it to the car.
Before you buy
Checklist
What you tick stays on this device only.
Sources
How we know
Information, not an expert opinion
We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.
- A fault on the list does not mean the car you are looking at has it.
- A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
- You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.