W169 Advice and Reassurance Required!

[Slime]

Hi everyone.
New to the forum .................... so please be gentle!
I've just bought a W169 A170 based on a description and a few photographs!
It's only 250 miles away, so I won't actually see it until next week some time.
The question I have is regarding the timing chain.
Rumour has it that they can be a little bit suspect and when they go ................... they go.
Tell me please, do they give any warning of impending failure such as a rattle for a few hundred miles?
If not, should I change the tensioner just to be on the safe side, or maybe the whole chain?
Am I being paranoid here?
The car is a March 2006 model with 63,000 miles on the clock and a partial service history.
What have I done?

Thanks in advance,

Slime.

 

[After Shock]

Welcome

I'm certain you'll get some good advice.

I hope it's good news and the car is a joy.

 

[rhud]

I keep a fairly close eye on W169 A Class matters and I do not recall hearing/reading about timing chain issues.

 

[wongl]

We have 3 W169 A-Classes with mileage ranging from 16,000 miles on a 2010, to a 88,000 miles on a 2006, and have not see any issues relating to the timing chain.

 

[John Sessions]

Ours was worn to replacement at about that mileage.