Said It Here

Can you tell if a car belt is worn from one photo?

Visual inspection from a single photo cannot determine the structural condition or internal wear of an older vehicle's belt. Without knowing the actual service history or being able to feel the depth of the grooves in person, buyers are left guessing whether surface marks are superficial or indicate an immediate risk of failure.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Inspecting service history documents
  2. 2
    Relying on past MOT advisory notes
  3. 3
    Consulting online mechanic forums for photo evaluations
  4. 4
    Checking with a fingernail to see if it sits in the groove
  5. 5
    Inspecting for impressions versus actual cracks

In their words

Unedited, most upvoted first, each linked to the thread it came from.

However being that it's a 16, nearly 17 year old vehicle is like some advice on the state of this belt.source ↗

The service history does not mention the belt being replacedsource ↗

Any thoughts on the condition? Apologies, this is the only photo I've been able to attain from the seller.source ↗

Sholto17 · r/AskMechanics · 2 upvotes

Do those marks looks superficial or should I get a replacement belt?source ↗

I've been cooking in the sun and cannot tell. I can hardly get my nail to sit in the groove, for whatever its worth.source ↗

ChannelCharacter6910 · r/MechanicAdvice · 2 upvotes

Where this came up

People with this problem also raised