2013 250cdi saloon 5w40 oil.

[Jazzy29]

Hi guys sorry to ask this as its everywhere but answers vary.
I have oil and filtered my recently bought 2013 C Class 250 cdi saloon with spec req 5w30 oil.
Since doing this the engine has a rattle on cold start up until oil temp up and around engine. I know this is very common on these cars but I am thinking of changing oil out for 5w40 as reading forums when these engines get up in miles 5w30 oil is bit thin. My car has done 90k miles, engine is really strong. Question is is it better for timing chain protection & to help engine rattle on cold start up to use 5w40 oil as long as its mb spec. ie 229.51 obvs for dpf.
Thanks very much for info.
Appreciated.

 

[malcolm E53 AMG]

Sounds like your timing chain is worn so that needs investigating and I’d stick with the recommended oil - 5W40 is generally used for performance engines which are subject to more heat

 

[JBell]

Here is some 5W40

MANNOL 2x5L Fully Synthetic PD Engine Oil 5W-40 SN/CH-4 C3 MB 229.51 VW 505.01 | eBay

Sat – Sun Closed. FIAT 9.55535-S2. Subject to sub-Clauses 14.2 and3 for fraud or fraudulent misrepresentation. RENAULT RN0700. any breach of these conditions;. Limitation of Liability. This condition applies if.

www.ebay.co.uk

 

[Jazzy29]

Here is some 5W40

MANNOL 2x5L Fully Synthetic PD Engine Oil 5W-40 SN/CH-4 C3 MB 229.51 VW 505.01 | eBay

Sat – Sun Closed. FIAT 9.55535-S2. Subject to sub-Clauses 14.2 and3 for fraud or fraudulent misrepresentation. RENAULT RN0700. any breach of these conditions;. Limitation of Liability. This condition applies if.

www.ebay.co.uk

Thanks very much. Is that oil any good? It reads the spec buy anybody know if good.? Thanks

 

[Malcolm Johnson]

Tend to buy oil from mercedes ebay shop, always feel happier that way. Suck up the extra cost as i provide labour these days as the cars are keepers.

 

[Jazzy29]

Tend to buy oil from mercedes ebay shop, always feel happier that way. Suck up the extra cost as i provide labour these days as the cars are keepers.

Yeah had a look at them online today tbh. I'm thinking Halfords for petronas syntium. Doing good offers just now.

 

[tpn]

Inexplicably timing chain rattle does not show until immediately after an oil change.

I would imagine that you could pour every viscosity of oil in without a change. In any event you still have the same cold viscosity as the 40 only comes into play later in the cycle.

Time to get a timing chain kit. Febi have an upgraded "triton coated" chain complete with tensioner, wheels and guides for a little under £300.00.
You could try the tensioner, it may prolong the inevitable for a while..... but.
I note that you only recently bought the car, therefore you may have a comeback on that if you bought off a dealer.

 

[Jazzy29]

Inexplicably timing chain rattle does not show until immediately after an oil change.

I would imagine that you could pour every viscosity of oil in without a change. In any event you still have the same cold viscosity as the 40 only comes into play later in the cycle.

Time to get a timing chain kit. Febi have an upgraded "triton coated" chain complete with tensioner, wheels and guides for a little under £300.00.
You could try the tensioner, it may prolong the inevitable for a while..... but.
I note that you only recently bought the car, therefore you may have a comeback on that if you bought off a dealer.

Thanks very much for info buddy. Appreciated. It's perfect after 2 mins running/driving so il is not hot by this time surely, my theory is the chain is OK but the thin oil laster in cycle as you say the 30 is not sticking to valves ect so I'm gonna try 5w40 with hope that the 40 end of cycle will coat and stick better to valves ect for next day cold start hence less rattle. Guy I bought it off said his service guys had used 5w40 last change. Car runs perfect with no chain rattle or any rattle after few mins of running. Thank you.

 

[JBell]

Tend to buy oil from mercedes ebay shop, always feel happier that way. Suck up the extra cost as i provide labour these days as the cars are keepers.

The "Mercedes Benz of Newcastle" one?

10L Genuine Mercedes Benz 5W30 Low Ash Engine Oil 229.52 Fully Synthetic Z10DPAC | eBay

Good cold starting performance, low oil consumption and minimised exhaust emissions. Useful Links. Can’t find what you're looking for?.

www.ebay.co.uk

 

[JBell]

Thanks very much. Is that oil any good? It reads the spec buy anybody know if good.? Thanks

Nothing wrong with it, used by several forum members, meets the Spec so all good

 

[Jazzy29]

The "Mercedes Benz of Newcastle" one?

10L Genuine Mercedes Benz 5W30 Low Ash Engine Oil 229.52 Fully Synthetic Z10DPAC | eBay

Good cold starting performance, low oil consumption and minimised exhaust emissions. Useful Links. Can’t find what you're looking for?.

www.ebay.co.uk

I've taken your advice guys along with what I can find online, also this forum has been brilliant for info on different oils used . I have ordered 7l of this oil from mercedes Edinburgh today along with filter. Surely the merc stuff gotta be the best. I didn't realise best spec now is 229.52 which this oil is so should be a win. Thanks very much for all your knowledge guys. Much appreciated.

 

[Jazzy29]

Inexplicably timing chain rattle does not show until immediately after an oil change.

I would imagine that you could pour every viscosity of oil in without a change. In any event you still have the same cold viscosity as the 40 only comes into play later in the cycle.

Time to get a timing chain kit. Febi have an upgraded "triton coated" chain complete with tensioner, wheels and guides for a little under £300.00.
You could try the tensioner, it may prolong the inevitable for a while..... but.
I note that you only recently bought the car, therefore you may have a comeback on that if you bought off a dealer.

Hi thanks for reply.
Thought I'd just let you guys know this morning I went out to car and decided to cycle heater plugs 3 times before cranking. Always just wait till heater coil goes out then crank. Anyway after 3rd time for glow plug icon going out I cranked engine. Absolutely perfect. Not a rattle of any kind. Sounded like engine was warm. I did give it a bit of beanz on way home last night motorway, maybe this has moved bit sludge or summit, also have shot of redex in tank as car was not looked after before I bought so hopefully all systems clearing out of rubbish as its a brilliant car. Will keep eye on it for 1st crank of day but I'm gonna change to merc oil from the napa that's in sump. Cheers guys.

 

[tpn]

Thanks very much for info buddy. Appreciated. It's perfect after 2 mins running/driving so il is not hot by this time surely, my theory is the chain is OK but the thin oil laster in cycle as you say the 30 is not sticking to valves ect so I'm gonna try 5w40 with hope that the 40 end of cycle will coat and stick better to valves ect for next day cold start hence less rattle. Guy I bought it off said his service guys had used 5w40 last change. Car runs perfect with no chain rattle or any rattle after few mins of running. Thank you.

The normal indicator for a worn/ stretched chain is a 10 to 15 second rattle on start up then the rattle goes.
If yours is rattling for minutes after things are not good.

It is only at the very later stages of death that you can hear it rattling for a longer period and later again while driven .
At that stage it is damaging the guides.

.....and at that stage you are at the stage whereby the engine has to come out to replace the guides, rather than being able to replace the chain in situ in the early stages of the wear

Best of luck with the 5.40

 

[Malcolm Johnson]

"Mercedes Benz of Newcastle" ebay is my supplier of oil for both vehicles re the question

 

[Jazzy29]

Hi guys. So serviced oil again at wk end. Used petronas 3000av 5w40 oil. Mb spec 229.51.( for dpf) & bosch filter.
All I can say is incredible. The engine is super smooth and no rattle on 1st start up in morning. Brilliant tbh. Will be using this going forward. Thanks for advice guys. Appreciated.

 

[tpn]

Hi guys. So serviced oil again at wk end. Used petronas 3000av 5w40 oil. Mb spec 229.51.( for dpf) & bosch filter.
All I can say is incredible. The engine is super smooth and no rattle on 1st start up in morning. Brilliant tbh. Will be using this going forward. Thanks for advice guys. Appreciated.

I wish you luck, but all I can add, based on your evidence is that your original rattle was misdiagnosed because I do not know of any oil that can shorten an already stretched/worn chain.
That oil is still at 5 on start up.

There is an " instrument" the screws in where the tensioner is that can measure the amount of stretch in the chain..

It costs very roughly around £1200.00.
Main dealers should have on.
Perhaps it wood be a good idea to have the stretch tested.

 

[mioba]

changing the oil is not fixing the problem but trying to find a workaround.
90k is nothing for a merc engine and you should use the spec oil till the car is dead.
Fix the underlying issue