Early R56 MINI Cooper S engines are known for timing chain rattle. What causes it, why you shouldn't ignore it, and the limited price data we have.
The N14 is the turbo engine in the 2007 to 2010 MINI Cooper S (R55, R56, R57). Owners call the timing chain noise the "death rattle," which is dramatic, but not totally wrong.
What's going on
The chain is kept tight by a tensioner and guides. On the N14, the tensioner and guides wear and the chain stretches, and you get a rattle that sounds like a diesel or marbles in a can for a few seconds after a cold start. Low oil makes it worse, and these engines can burn some oil, so check the dipstick often.
If the chain skips, valves meet pistons. So the rattle is a "get it looked at soon" noise.
What fixing it means
A shop might start with just the tensioner, which is cheaper and sometimes helps for a while. If the chain is stretched or the guides are worn, the real fix is the full kit: chain, guides, tensioner, and often the sprockets. That's a lot of labor on a small, packed engine bay.
Price data
We have exactly one report: indie quotes "over $2,000" on a 2009 Cooper S in Orlando at the end of 2022. That's not enough to call a median, so please treat it as a single data point. If you've had this done on an R56, send us what you paid and what was included. You'd be helping every MINI owner who finds this page.
Ask your shop
- Tensioner only or full chain kit?
- Did they check the chain stretch and the guides?
- Oil consumption: is anything else going on (valve stem seals, PCV, carbon)?