Rattling from 2013 Mini Cooper (Tensioner?) - MINI Cooper Forum

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post #1 of 2 (permalink) Old Oct 22nd, 2018, 07:35 AM Thread Starter
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Rattling from 2013 Mini Cooper (Tensioner?)

Hello everyone.

Recently my 2013 Mini cooper developed a rattling sound that would randomly happen. Mostly from starting up the engine, however after recent trip to pick up a few friends, I took the car up a long uphill road and ever since it has been making this rattle CONSTANTLY.

Now i've done tons of research and heard many people say that the problem with theirs was the tensioner or the timing chain. However I can never tell if the sound coming from their engine is exactly the same as mine so I just want to ask opinions for extra clarity.

It's coming from near the front right of the hood (if you're facing from inside) and it's loud enough that I actually had to close my hood filming this so I didn't wake up my parents who were sleeping with their window open.

How soon should I get this fixed? (mainly because I have to use it to get to work) and how much would you estimate it costs?


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Last edited by Cadicus47; Oct 22nd, 2018 at 07:35 AM. Reason: wrong video
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post #2 of 2 (permalink) Old Oct 22nd, 2018, 08:14 AM
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If, and I strongly suspect it is, it is the timing chain/guides, stop using the car NOW. If the top guide breaks or the chain snaps/jump you are heading into replacement engine territory or bent valves at least. Remove the rocker cover and inspect the chain and top guide. Hopefully you have stopped using it in time. I really mean it, do not even turn that engine over again!!! Sounds like the top rail plastic is gone. That means plastic in the sump and oil pump filter.

There are many guides, excellent ones online/youtube and manuals (Haynes/Bently) that will guide you through a DIY. The cost of tools and parts will make it much cheaper than a garage/dealer.

If you have access to your own space to work on the car it would take you a full day tops.

Basic necessities are:-

Mini timing tool kit. £35-40
Timing chain, lower sprocket, guide rails, uprated tensioner. Guide rail bolt o-rings. £80-180 depending on quality
New cam shaft bolts (for an S there are two lengths, for a justa both are the same length) £14
New crankshaft bolt. £8
Front crankshaft hub seal. £25
4 equal length sticks (BBQ skewers are good).
Torque wrench. £35-40
Socket set with E type sockets included. £50 - 80
Socket angle adaptor. £10
Shifting spanner that will do 27mm for belt tensioner. £20
Various screw drivers.
Crankshaft holding tool (to get the crankshaft bolt out and torqued back up). Make your own or buy.
Cam/rocker cover gasket and gasket sealant. £10-14
Trolley jack.

If you can borrow or already have some of the tools, great.

If it is very high mileage you might consider replacing the oil pump chain and sprocket too.

Get yourself some replacement plastic wheel liner expanding clips (these will break when removed).

Cooper 2009, R57.

Last edited by Scudder; Oct 22nd, 2018 at 08:23 AM. Reason: spelling
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