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PostPosted: Sat Jun 30, 2018 8:12 pm 
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Can anyone advise on what could possibly be causing a rattle in the engine bay when I start the car when it has been left for a while, I am curious to know if anyone else has had this problem and what the solution may be.

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PostPosted: Sat Jun 30, 2018 9:05 pm 
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Isn't that the typical 'diesel rattle' that comes from the looseness of the pistons/cylinders until the engine warms?

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PostPosted: Sun Jul 01, 2018 1:32 pm 
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mileage ? if its over 100k miles, it will be lifter rattle the oil drains out of the lifters over time - replace the lifters or try a slightly thicker oil (it usually tells you in your service book) for higher mileage engines

when was the oil last changed ? being 2011 it will have a DPF and what happens with DPF engines is the fuel will over time thin the oil, does it smoke under load when warm ?


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PostPosted: Sun Jul 01, 2018 2:05 pm 
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Bob225 wrote:
mileage ? if its over 100k miles, it will be lifter rattle the oil drains out of the lifters over time - replace the lifters or try a slightly thicker oil (it usually tells you in your service book) for higher mileage engines

when was the oil last changed ? being 2011 it will have a DPF and what happens with DPF engines is the fuel will over time thin the oil, does it smoke under load when warm ?


All these engines that pump out roughly 100bhp per litre, are highly stressed.
I'd be changing the oil and filter at less than the recommended 12, 500 miles.
About 8K I reckon.
I don't know anything about that engine really. I've always changed oil on everything I've had at much less than the recommended.


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PostPosted: Sun Jul 01, 2018 4:40 pm 
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with the wonderful euro 5 diesels they all get a DPF a side affect of the emissions control is it dumps raw fuel into the oil, diluting it iirc the 2.2 takes 0w30 or 5w30 (6.5-7 litres on a change) what's thin as it is add a well run in engine and diluted oil and you will get oil passing the rings, lifter noise, a blue smoke as well when its warm as the seals on the turbo let past

2.2 is a common rail, inline 4, turbo, iirc its the Hyundai R series engine, high output circa. 200bhp


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