Defective Water Pump
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MBWorld Fanatic!
Joined: Jan 2004
Posts: 2,200
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2004 CLK320
Defective Water Pump
I drive a 2004 CLK320, today I heard a clicking noise from the car and looking into the engine bay, I saw liquid dripping out of a device in the bottom of the fan belt. After I drove for a while, a malfunction alert came on asking me to check the coolant level. I guess I have a defective water pump.
Is it a big job to replace the water pump? What is the ball-part figure?
In other cars with timing belt, it is recommended to change the timing belt every 100K km. It is recommended to change the water pump at the same time. Since my 2004 CLK320 has a timing chain, I never changed the chain or the water pump. After 200K km, I guess it is time.
I will add some coolant tomorrow before driving it to the dealership. While changing the water pump, is there anything else I should change in that vicinity?
Is it a big job to replace the water pump? What is the ball-part figure?
In other cars with timing belt, it is recommended to change the timing belt every 100K km. It is recommended to change the water pump at the same time. Since my 2004 CLK320 has a timing chain, I never changed the chain or the water pump. After 200K km, I guess it is time.
I will add some coolant tomorrow before driving it to the dealership. While changing the water pump, is there anything else I should change in that vicinity?
Super Member
Joined: Nov 2007
Posts: 655
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I drive the racism out of BadDebt. ;)
waterpump is a fair sized job. Took 3hrs, and make sure you draw a template of ur waterpump on a large piece of cardboard...and apply the bolts to it from your own pump...theres diffrent sizes. and flush out ur coolant while ur at it.....and you might aswell replace the alternator while ur at it.
