Go Back   MBClub UK - Bringing together Mercedes Enthusiasts > Technical > Engine
MBClub supports BEN Official Stickers @mbclubuk

Engine Engine/transmission and other oily matters

Thread Tools
Old 13-12-2016, 11:20 PM   #1
New Member
Join Date: Jun 2013
Car: w124 300d
Posts: 12
om606 turbo diesel running temp?

Hi from Australia
My newly purchased w210 om606 turbo diesel warm up time is nearly 2x my 124 om603 na even on a hot day
Running temps of the 606 are rarely above 80c with ac on a 36 deg c day.

The 603 regularly goes up to 95 deg c ( I understand that is normal ) with new ...(thermostat, radiator and thermal rad fan clutch) and electric fan running AND ac operating.
I was going to check out the 606 radiator thermostats correct operation.
Are these temps in the 606 normal?
Cheers Peter
farmerpete is offline   Reply With Quote
Old 14-12-2016, 02:33 AM   #2
New Member
Join Date: Dec 2016
Car: khong co
Posts: 1
global2016 is offline   Reply With Quote
Sponsored Links
Old 14-12-2016, 08:35 AM   #3
Hardcore MB Enthusiast
Join Date: Jul 2010
Car: '05 C220 CDI Avantgarde SE
Posts: 928

80C seems normal but some do go above 90C as well. If it is taking very long to warm up then I'd say your thermostat requires changing.

Here in UK we had some sub-zero temperature cold weather and our C220 CDI OM 646 took around 15-20 minutes to warm up (that is stop/start city traffic conditions). It warms up even quicker if no traffic.

We changed the thermostat on our CDI because it was taking ages to warm up before (around 30 minutes stop/start traffic).

Thermostat is not hard to change and the part is not very expensive either here in the UK (50 for OM 646 engine). Always use genuine MB part and coolant.

Hope this helps.

Sent from my GT-I9505 using MBClub UK
mbenz1 is offline   Reply With Quote
Old 15-12-2016, 01:20 AM   #4
New Member
Join Date: Jun 2013
Car: w124 300d
Posts: 12
So my 606 warm up time in summer is maybe 10min to running temp.So realistically not too slow comparatively speaking
The 603 is easily half that.
farmerpete is offline   Reply With Quote

diesel, om606, running, temp, turbo

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

All times are GMT +1. The time now is 04:41 PM.

MB club UK is A Mercedes Enthusiast club run by enthusiasts for enthusiasts, MBClub UK is in no way affiliated with Mercedes-Benz, DaimlerChrysler or any of their respective trademarks. The posted views of our members are in no way the views of MBClub.co.uk or its owners.
Find us on Google+