W124 E220 Overheating - Thermostat?
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Blackman
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Got it serviced today, and asked the guy to check the fan as well.
He says it's the coupling. So I checked on eBay - £35
NEW Viscous rad fan clutch coupling MERCEDES CLK (W124) on eBay (end time 15-Sep-10 22:02:53 BST)
E220 is not highlighted, but it's the same as E200, correct?
He says it's the coupling. So I checked on eBay - £35
NEW Viscous rad fan clutch coupling MERCEDES CLK (W124) on eBay (end time 15-Sep-10 22:02:53 BST)
E220 is not highlighted, but it's the same as E200, correct?
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Blackman
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What do you recommend? ECP or get it from MB directly? Had a look on ECP and it's £55.
The funny thing is, how do I know whether ECP is not selling the same thing, but overpriced? lol
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Blackman
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Got the coupling today, and going to replace it on the weekend.
Is there anything I should know? How do I remove the fan? All I can see is just the massive nut there, holding the fan blade in place?
Or it can be done without removing the fan? :O
Is there anything I should know? How do I remove the fan? All I can see is just the massive nut there, holding the fan blade in place?
Or it can be done without removing the fan? :O
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grober
MB Master
The large nut on the coupling is a left hand thread [ it should have small cut marks on the edges of the nut flats to signify this] you will need a a large water pump spanner to remove replace it. e.g. Halfords | Laser Fan Spanner 32/36mm
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Blackman
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grober
MB Master
Undo the nut remove the fan + coupling. undo the 3 allen head screws- remove plastic fan and mate it up to the new viscous coupling.
Where you may have difficulty in locking the water pump pulley to undo the nut [anticlockwise] A crude way is to lock it with vice grips to prevent it rotating- MB has a special shaped key that fits over the the water pump pulley allen screw heads
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Blackman
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How much is that special tool from MB? I struggled to undo the bloody nut, despite whatever I tried
The water pump keeps going round, and I can't stop it, lol
grober
MB Master
How much is that special tool from MB? I struggled to undo the bloody nut, despite whatever I tried
TOO expensive - even if you can order it now . I made one from some 1/8" mild steel plate. Made a template from stiff card first [ breakfast cereal packet is ideal] then scribed the cut out shape from there. Used a drill of correct size for allen screw heads and jigsaw with a suitable metal blade for the rest.- make it with a long handle on it!
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Blackman
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Eerhmmhm, thanks for the reply, but not sure if I can manage to make that...Don't have the tools or more importantly the skills
Any other options I have available?
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Blackman
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Or you can try a large chisel on the corner of the nut with a very firm wack with a hammer. This normally releases the tightest couplings.
Will give that a try, cheers
By the way, undoing is anti-clockwise, correct?
Standing at the front of the car, looking into the engine bay, you need to turn the spanner clockwise- it is a left hand thread.. tighten to slacken..
Have a look here.. Its for a 300D but the same setup
20 Cooling System - OM606
Mine have got a 13mm headed bolt in the centre of the fan, as they have the magnetic clutch.. doodle to change..
murray motors
Active Member
sounds like a fan problem the air flows through the rad when moving so the fan compensates for no air find out what sort of coolant fan poss viscoes ignore those pictures the are of a 102 engine you have a 111 engine
I had cooling problems with my 200E when I first got it. Didn't ever actually overheat, but always ran warmer that I was happy with, although never saw the gauge over 100. Fan cut in at the correct temp, and would cool the car, albeit slowly. Putting the heater on also brought the temperature down. I replaced the water pump due to a small leak, but this made no difference to the temp. I flushed the system for a good while ( which worked wonders on my 190D-the heater is RED hot now) but this made no difference either.I then noticed a very small weep on the radiator, and got a good used one for it..now the car runs just under 80... Time for a new thermostat I think!
The 190D runs at 85 no matter what.. +28 degrees.. - 15 degrees, doesn't matter, always runs at 85, and heat from the heater within half a mile! Perfect!
The 190D runs at 85 no matter what.. +28 degrees.. - 15 degrees, doesn't matter, always runs at 85, and heat from the heater within half a mile! Perfect!
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Blackman
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Tiff, your "hammer bang" method worked I was almost losing my hope, but it eventually came off. Thanks.
Replaced the coupling, and the fan started spinning quite fast...I can't stop it with my finger anymore, lol
The temperature so far is all good. After some driving in traffic, it seems to stay around 85-90 mark.
I believe that's correct?
I was almost losing my hope, but it eventually came off. Thanks.Replaced the coupling, and the fan started spinning quite fast...I can't stop it with my finger anymore, lol
The temperature so far is all good. After some driving in traffic, it seems to stay around 85-90 mark.
I believe that's correct?
