Low Coolant Level Indicator...
Thread Starter
Member
Joined: Nov 2007
Posts: 118
Likes: 1
From: Seattle, WA
2008 GL 550
Low Coolant Level Indicator...
...came on, so I need to add some coolant. The manual refers to using MB 325.0 anticorrosion/antifreeze agent. Is this a proprietary formula that I need to get from dealer? Also manual states mix should be 50/50 with water. Assume I should create a pre-mix when I top it off? Finally, I am a little surprised that the indicator came on given relative few miles and youth of car. Has this happened to anyone else? Thx in advance,
Super Member
Joined: Mar 2008
Posts: 903
Likes: 23
From: B.C.
GL 320cdi, Chevrolet Avalanchero, GLE 350 (on order)
That's odd, 'cus mine came on yesterday as well.
When I opened up the expansion tank,it looked as full as it could go, and upon restart, the message was gone...
When I opened up the expansion tank,it looked as full as it could go, and upon restart, the message was gone...
Member
Joined: Nov 2007
Posts: 83
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From: Auburn, California
2016 GL63 & 2008 S550
I'm at 17K on mine...
Super Member
Joined: Feb 2009
Posts: 711
Likes: 11
From: NW corner of CONUS
2008 GL 320 CDI, 2004 VW V10 Touareg TDI
...came on, so I need to add some coolant. The manual refers to using MB 325.0 anticorrosion/antifreeze agent. Is this a proprietary formula that I need to get from dealer? Also manual states mix should be 50/50 with water. Assume I should create a pre-mix when I top it off? Finally, I am a little surprised that the indicator came on given relative few miles and youth of car. Has this happened to anyone else? Thx in advance,
Super Member
Joined: Dec 2007
Posts: 898
Likes: 9
From: Woodstock, IL
His 2019 RAM Cummins Turbo Diesel Laramie; Her's 2007 ML320 CDI P3; Mine BMW R1200R
I have seen that message a few times since new, usually on a cold morning start up. Every time I check, the reservoir was full. Rarely I can manage to squeeze in about a half a cup of Zerex G-05, to top it up. Also had the dealer check the system, and it pressure tested fine, no leaks.
I also thought it was a rouge bubble from the factory fill, but in a post somewhere, I read where someone had their ML transmission software re flashed with the latest upgrade for tranny issues, and the message has not been seen since. I myself just had the new software re flashed and no more message as of yet. Could be something there?
I also thought it was a rouge bubble from the factory fill, but in a post somewhere, I read where someone had their ML transmission software re flashed with the latest upgrade for tranny issues, and the message has not been seen since. I myself just had the new software re flashed and no more message as of yet. Could be something there?
Super Member
Joined: Mar 2008
Posts: 903
Likes: 23
From: B.C.
GL 320cdi, Chevrolet Avalanchero, GLE 350 (on order)
Yes, cold start, but not that cold, -15c, a few hour after I had last driven it, but in direct sun. Odder yet because water will expand as it get colder, the block and everything else will shrink, making the capacity lower after it get cold.
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Super Member
Joined: Dec 2007
Posts: 898
Likes: 9
From: Woodstock, IL
His 2019 RAM Cummins Turbo Diesel Laramie; Her's 2007 ML320 CDI P3; Mine BMW R1200R
Forgot to add that. Your right, not too cold, just above freezing or so, and after being parked overnight. I still think that a reflash would be the fix. Or the factory left a really big bubble. So far I have not seen the message re appear.
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Thread Starter
Member
Joined: Nov 2007
Posts: 118
Likes: 1
From: Seattle, WA
2008 GL 550
forgot to update thread. took it in for service and had MB check. my issue was loose hose clamps from which coolant was seeping. was fixed by tightening hose claps. no problem since.
