Hey Up Everyone,

My 4.2 s/c seems to put out a lot of smoke when starting the car either first thing in the morning or after letting it stand for quite a few hours but after this while driving etc it doesn't smoke at all.
Coolant is at the same level it has always been and oil level is the same although it is slightly overfilled by approx 2cm on the dipstick.

Can anyone please let me know what it could be.

Zaff Current Cars -
FFRR L322 4.2 Supercharged 'Bonatti Grey'
Mercedes C270cdi

I hope you mean overfilled on the dipstick by 2mm. If it really is 2cms I'd be inclined to get some out.

Mine spits a little blue smoke if it's been standing for months, which does happen on occasions. Left for a few days I get no smoke at all. 2017 5.0 Autobiography Supercharged
2005 Merc SL350
2005 Disco HSE 2.7 oil burner

I need to drain some out I know. It's white smoke only. No blue. Current Cars -
FFRR L322 4.2 Supercharged 'Bonatti Grey'
Mercedes C270cdi

Sure it's not steam? Mine puts out a surprising amount of steam for a surprising length of time from a cold start on a cold morning. This time of year no steam or smoke at all.

See that's my issue. It's been roasting and it still does it on startup. Looks like a bloody steam train at first but then after 5-10secs it's gone

Zaff Current Cars -
FFRR L322 4.2 Supercharged 'Bonatti Grey'
Mercedes C270cdi

Can you get a photo or video of it?

I will get a video over the weekend but if anyone has any ideas before then let me know.

Zaff Current Cars -
FFRR L322 4.2 Supercharged 'Bonatti Grey'
Mercedes C270cdi

I'd drain out some oil. 2cm above is too much above really to be honest. Easiest method I would use is to loosen the oil filter till it starts to spill out. It should run off the filter and be reasonably easy to collect in a pan. Collect about 1 litre out and retoghten the filter. that should bring you back to within the min max levels. If you take too much out, then it's easy to add more back in. V8 or else ...

I wouldn’t think the car would still be running if the dipstick was 20mm above the max mark Fisha... Probably meant as 2mm

Apologies. Looked at the dipstick again. It is overfilled but between 5-10mm which is still alot I know. I will try and extract some via the filter.
The startup does have a blue colour to it but then never again when driving. Here is a quick video as my Missus was indoor holding the little one and a camera lol.



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Cheerz

Zaff Current Cars -
FFRR L322 4.2 Supercharged 'Bonatti Grey'
Mercedes C270cdi

Mine is an 05, done 93000 miles and no smoke at all. I would look at the oil level first! Alex

2018 Skoda Kodiaq vRS
2009 Caterham Supersport Race car
2007 M5 Touring
2005 Range Rover Vogue SE Supercharged
2004 SL55 AMG

Hard so say from that video, but it does look a little oily to me. Get the oil level down to the proper amount and that may solve the problem. P.s. I wouldn't necessarily drain via the filter as it could be messy given where it is on the SC. Maybe better using the drain plug.

The drain plug is messier. It doesn't really drain when you loosen it. Its an all or nothing affair with that plug.

I changed the oil a couple of days ago and found that although when loosening the oil filter, it spilled over the pipes and tubes under it, the oil just fell downwards into the pan and any mess was early wiped away with a rag after. V8 or else ...

Thanks for all the responses and advice. Anyone got a diagram of where the oil filter is located? or just generally where it is. Im at work at the moment so can tstick my head under the bonnet to look.

Zaff Current Cars -
FFRR L322 4.2 Supercharged 'Bonatti Grey'
Mercedes C270cdi

Accessed from underneath, front of the engine. Under tray off job. Personally I would use the drain plug, but you can decide.