Engine oil

[Mickey42]

I have no history with my 320 clk, the obvious option is to give it an oil and filter change anyway. But I was wondering, when she gets up to temperature she sounds a bit bottom endy, would that confirm it needs changing? Also which oil should I use as europarts and gsf says various from 0-40 variations.
Thanks again guys for all your valued contributions.

 

[Alastairp]

Sounds like it might be too late.....

 

[mioba]

was it a recent purchase and did the PO mention any "faults".

Whats the oil condition like?

What year is the car?

 

[Mickey42]

I bought the car from a deceased estate therefore no history or even v5. She is a 2004 clk 320 convertible with 124000 miles. Ive had it for 6 months and done about 1000 miles only to and from work about 4 miles each way. It’s fine when cold but when warm sounds a bit knocky bottom end.

 

[mioba]

A car of that era would have been MB229.3. Would been superseded now.
My W220 of the same era uses mobil 1.

Whats the oil condition like - colour wise.

An oil change on a new to you car wont do any harm.

 

[Mickey42]

5w 40 I’ve researched is the right oil?

 

[mioba]

make sure its MB229.5 (the spec matters)

 

[AMGeed]

5w 40 I’ve researched is the right oil?

Correct.
Petrol is 229.5 spec, diesel 229.51 or 229.52.

Look at the Mercedes Newcastle ebay shop for 10 litres plus the oil filter.

Pardon our interruption...

 

[horatio]

That V6 is a very strong engine. I would check simple things like harmonic balancer/crankshaft pulley, engine mounts, belt tensioner, ac compressor etc for cause of noise before assuming bottom end.

 

[mioba]

That V6 is a very strong engine. I would check simple things like harmonic balancer/crankshaft pulley, engine mounts, belt tensioner, ac compressor etc for cause of noise before assuming bottom end.

Simple things.....

 

[horatio]

Simple things.....

The beauty of the M112 is how compact it is, acres of room to spanner away in front it!

 

[SL63 Mark]

she sounds a bit bottom endy,

Can you describe the noise in more detail ?