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4x4abc Date registered: Apr 2006 Location: La Paz, Baja California, Mexico Vehicle(s): 02 G500 | G500 water pump, engine vibrations etc sounds like my water pump is going out - characteristic noise and play in fan does anyone have a pdf for the tear down? Would the M112 pump fit? Edited by 4x4abc 4/20/2015 2:21 PM | ||
#227679 | |||
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DUTCH Administrator Doppelgänger Date registered: Apr 2006 Location: US, GA, Atlanta Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter Posts: 9963 | RE: G500 water pump 4x4abc - 4/10/2015 10:20 PM sounds like my water pump is going out - characteristic noise and play in fan does anyone have a pdf for the tear down? Would the M112 pump fit? My guess is that the M112 pump should fit. Email me your VIN, and I'll dig up the WIS procedure. | ||
#227680 - in reply to #227679 | |||
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4x4abc Date registered: Apr 2006 Location: La Paz, Baja California, Mexico Vehicle(s): 02 G500 | RE: G500 water pump so here is an update before my water pump went out (noise and wiggly shaft), I had noticed 2 things: the viscous coupling on the fan was frozen the engine would display strong vibrations after checking all diagnostics (all values were good) and not being able to find any cause for the vibrations, I suspected the constantly running fan especially at startup the engine would run very rough. then the pump went out and immediately I thought, that maybe the same harmonics killed the pump bearing now I have replaced the pump (a job from hell with 19 bolts) and the viscous and the engine runs a smooth as a new one no more vibrations at all bottom line - if your viscous is dead, do not wait a single day to replace it | ||
#227773 - in reply to #227680 | |||
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e300diesel Date registered: Sep 2013 Location: Palo Alto, California Vehicle(s): 03 G55AMG, 06 E320CDI; 17 Sprinter Roadtrek | RE: G500 water pump How many miles were you at? My mechanic has noticed bearing noise on my pump @108k on my2003 G55, but my viscous coupling and fan are new, the water pump however is not. He says replace soon, but I'm wondering how long I could wait since it's just a city car for me. Vinay | ||
#227805 - in reply to #227773 | |||
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AlanMcR Expert Date registered: Apr 2006 Location: US, CA, Los Altos Vehicle(s): G300DT E300DT 230SL Posts: 3500 | RE: G500 water pump The concern is that a bearing failure can quickly become catastrophic. If the shaft gets out of position then the fan can tear up the radiator. I'd fix it now. | ||
#227809 - in reply to #227805 | |||
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4x4abc Date registered: Apr 2006 Location: La Paz, Baja California, Mexico Vehicle(s): 02 G500 | Re: G500 water pump, engine vibrations etc I am close to 250k miles - I am with Alan, don't wait. Fix it now. | ||
#227812 - in reply to #227679 | |||
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atg Veteran Date registered: Nov 2014 Location: Los Angeles Vehicle(s): 2005 G55, 1985 300tdt Posts: 129 | RE: G500 water pump DUTCH - 4/11/2015 4:31 AM 4x4abc - 4/10/2015 10:20 PM sounds like my water pump is going out - characteristic noise and play in fan does anyone have a pdf for the tear down? Would the M112 pump fit? My guess is that the M112 pump should fit. Email me your VIN, and I'll dig up the WIS procedure. I have the WIS running on a virtual machine but I seem to have trouble finding specific procedures like this one. Is there a step by step example of how to get there? I know a few hours of trying would probably succeed but I rarely have that luxury.Thanks for any help. PS I just noticed the g55 idling a bit rough when cold, so thanks for this thread. There was a hint of play in the pump pulley (but not alarming) when I changed the belt. How much is too much on that item? And is that idler really as crappy as everyone says? Thx. I am only at 55k! Edited by atg 5/28/2015 6:36 AM | ||
#228339 - in reply to #227680 | |||
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4x4abc Date registered: Apr 2006 Location: La Paz, Baja California, Mexico Vehicle(s): 02 G500 | RE: G500 water pump the procedure for the water pump is on the WIS - Dutch sent it to me (Thanks!) is your fan clutch free when cold? there should be no play in the pump shaft/bearing the idler (and the one on the tensioner) are straight from hell they fail without warning, leaving you stranded with an incredible mess under the hood | ||
#228350 - in reply to #228339 | |||
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atg Veteran Date registered: Nov 2014 Location: Los Angeles Vehicle(s): 2005 G55, 1985 300tdt Posts: 129 | Re: G500 water pump, engine vibrations etc Someone on here was selling aftermarket idlers. Who was that? Replaceable bearing. | ||
#228355 - in reply to #228339 | |||
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DUTCH Administrator Doppelgänger Date registered: Apr 2006 Location: US, GA, Atlanta Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter Posts: 9963 | Re: G500 water pump, engine vibrations etc atg - 5/28/2015 8:49 PM Someone on here was selling aftermarket idlers. Who was that? Replaceable bearing. G-wagenaccessories.com | ||
#228356 - in reply to #228355 | |||
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fernweh Date registered: Apr 2006 Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa | Re: G500 water pump, engine vibrations etc DUTCH - 5/28/2015 6:28 PM atg - 5/28/2015 8:49 PM Someone on here was selling aftermarket idlers. Who was that? Replaceable bearing. G-wagenaccessories.com The 2005 G55 has a different Idler Pulley.... | ||
#228360 - in reply to #228356 | |||
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4x4abc Date registered: Apr 2006 Location: La Paz, Baja California, Mexico Vehicle(s): 02 G500 | Re: G500 water pump, engine vibrations etc are you saying, you don't have that one? | ||
#228364 - in reply to #228360 | |||
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fernweh Date registered: Apr 2006 Location: Calabasas, CA - Centenario, BCS - Luebeck, Germany Vehicle(s): Few Mercedes-Benz, a Toyota Amphibious and a Vespa | Re: G500 water pump, engine vibrations etc 4x4abc - 5/28/2015 9:09 PM are you saying, you don't have that one? Correct. I believe pulley not plastic. G55 mostly a city vehicle, never far away from a MB dealership. Other pulley sets (different size) available for more "ummmhp" | ||
#228372 - in reply to #228364 | |||
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atg Veteran Date registered: Nov 2014 Location: Los Angeles Vehicle(s): 2005 G55, 1985 300tdt Posts: 129 | Re: G500 water pump, engine vibrations etc Is a plastic pulley somehow more reliable than a metal one? The different sizes are for the crank and supercharger pulleys. Not so much the idlers. Yes my supercharger idler is aluminum. Not sure about the one behind it. https://www.dropbox.com/s/jinixlwxip38dm6/20150529_182649.jpg?dl=0 The fan is electric so no clutch. Edited by atg 5/31/2015 11:27 AM | ||
#228403 - in reply to #227812 | |||
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