S Class w140 heater booster fan stopped working

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Duh, got any idea on size or which ones, I didn't measure them before i let the car go.
 

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Duh, got any idea on size or which ones, I didn't measure them before i let the car go.

I do have a spare motor here,,and I will try and measure them up
 
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..........could i ask you where the regulator is situated, is it on the blower. I know this sounds stupid, but I have refitted the cover etc above the blower yesterday. Thanks
 

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In the link in post 2 it is the 253-260 part it is fixed in by the side of the motor
 

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Star,, the brushes are 8.5mm x 10mm for the fan in the picture
 

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Star,, the brushes are 8.5mm x 10mm for the fan in the picture

Thanks M, but thats the wrong fan unit for a 140 chassis. I wonder if they use the same brushes?
 
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is the resistor the same as a regulator, yes great, if not where is the resistor and if that has blown, would that stop the booster blower from increasing/ decreasing in power? Would you suggest I replace both (if indeed they are dfferent!?)
 

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Thanks M, but thats the wrong fan unit for a 140 chassis. I wonder if they use the same brushes?

Yes its a 124 If the OP here does take his motor out the will be a Bosch number on it,, if we had that then it makes it much easier to do a search. The MB cat number is not the same
 
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This ref my S Class W140.........
is the resistor the same as a regulator, yes great, if not where is the resistor and if that has blown, would that stop the booster blower from increasing/ decreasing in power? Would you suggest I replace both (if indeed they are dfferent!?)
 

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This ref my S Class W140.........
is the resistor the same as a regulator, yes great, if not where is the resistor and if that has blown, would that stop the booster blower from increasing/ decreasing in power? Would you suggest I replace both (if indeed they are dfferent!?)

There is no resistor as these were dropped some years back and the solid state regulator has been used since.

They are often on Ebay cheap
 
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I have just had the daily post up here on Skye and the postie handed me a parcel which contained my new regulator. After about 15mins it was fitted. I reconnected the battery and with baited breath I turned on the ignition.........
I was greeted with a boost of air which nearly pushed me through the back window!!!!!!!!!!SUCCESS. Many thanks to EVERYONE for your help and knowledge. The total cost was just £59.99 + £2.95 p&p for a NEW regulator!
Thanks again guys I owe you a drink.
 

television

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I have just had the daily post up here on Skye and the postie handed me a parcel which contained my new regulator. After about 15mins it was fitted. I reconnected the battery and with baited breath I turned on the ignition.........
I was greeted with a boost of air which nearly pushed me through the back window!!!!!!!!!!SUCCESS. Many thanks to EVERYONE for your help and knowledge. The total cost was just £59.99 + £2.95 p&p for a NEW regulator!
Thanks again guys I owe you a drink.

Your nice post above is all we need,,It makes life on here all worth while :D:D
 

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Regulator/resistor

I had the same problem with my W140 1993
It turned out to be the resistor/regulator which is mounted above the blower motor on the left under the bonnet
 

television

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I had the same problem with my W140 1993
It turned out to be the resistor/regulator which is mounted above the blower motor on the left under the bonnet

Pleased that you have warm feet now
 

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