If a car is well maintained, then shouldn't matter even if over 10 yrs old.

Examples? What are the things that may need changing ?

A car is not designed to be driven for 10 yrs without need to change anything.
Sure have to maintain = change parts which worn out.

ahh... Now I understand, no wonder it cost a bomb...

If sent back to authorized SC, they will charge labour for normal checks... i.e just checking the condition of the spark plugs or simple stuff also they charge labour. Check brake pads, charged, check fluid level, charged, check suspension, charged... etc

The moment my cars no longer under warranty, I'll sent to my regular mechanics for major stuff...... other things you can actually do yourself. Especially all the regular checks.

A case in point, just helped my friend to look over a 22 yrs old SEG 1.6 selling for ~10k... car was fine, some stuff are expected need to do... e.g... Engine mount cracked, slight oil leak from head gasket, exhaust leaking, aged coolant tubes...

Full overhaul, all new engine mounts, fluid changes, all the minor stuff.... all can be done for ~ RM 2 K or lower.

That's so much work for RM 100 more than the Mazda "normal service"

Yup... agree

Most people don't know what's in the car... like most don't know what is inside their laptops/smartphones, etc
They just "pour petrol and go" type. Car maintenance leave to SC/ mechanics/ father/brother... etc

Talking about outside mechanics cheat customers... even some authorized SC also will do it. just less chances of it happening.

good that your friend realize and complained.

But sure a lot of customers don't know and pay only. They think whatever the SC say because it's so called authorized SC, that is the correct thing to do.