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1990 300TE
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63 Posts
Discussion Starter #1
Guys, Went to dealership to pick up my gallon of yellow and they gave me blue. He then showed me a bulletin released by Mercedes saying that they were phasing the yellow stuff out and this was the new phosphate free coolant and it is compatible with yellow. I said no thanks and went to get a gallon 0f G-05. Right now, I want it one color. Maybe next flush, switch to blue. I know when I had my old 95 E34 BMW, the BMW blue stuff was great and used it all the time. Oh well, just an update. Thoughts?
 

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E320/E250 Bluetec Ford F350 6.7l
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36,723 Posts
I have very pleasant experience with the pee -colored coolant as I prize it for allowing me to run our diesels with no engine fans in 100F weather. That save you fuel money in case you wonder....
I just pick up MB coolant from indy warehouse and they did have the blue stuff, but gave me 4 bottles of pee.
I have good confidence in MB stuff, but they did several ops in last years introducing new products, so I would wait for somebody else to test blue stuff.
Any volunteers?
 

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1996, A124, E320 Sportline Cabriolet x 2
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1,555 Posts
Had it in one of mine since new - 1996 no problem. We cannot get anything else here in NZL through the Dealerships.
 

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Premium Member
'92 300TE 4matic 280,000miles, '92 300TE 4Matic 'Ice Blue Metalic' 101,000miles
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10,400 Posts
Nobody on this board that I'm aware of (me included), is having any problems substituting Zerex G-05 antifreeze/coolant for any factory MB brew.

Kevin
 

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1771 Cugnot Steam Wagen
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472 Posts
I haven't used MB's coolant besides the yellow. But I'm positive they test it on engines before distributing to dealers. If it did do something "terrible" make them fix the damage.
 

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E320/E250 Bluetec Ford F350 6.7l
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36,723 Posts
Nobody on this board that I'm aware of (me included), is having any problems substituting Zerex G-05 antifreeze/coolant for any factory MB brew.

Kevin
Some members using Zerex report that their cars driven in mild climates get hot even with fans running at full speeds.
I use MB coolant and drive our diesels at 100+F with engine fans removed.
 

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Premium Member
'92 300TE 4matic 280,000miles, '92 300TE 4Matic 'Ice Blue Metalic' 101,000miles
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10,400 Posts
Some members using Zerex report that their cars driven in mild climates get hot even with fans running at full speeds.
I use MB coolant and drive our diesels at 100+F with engine fans removed.
You should substantiate that claim by having actual members report here who have used Zerex-instead of hearsay. It wouldn't make sense if that happened in mild climates and not hot climates like Phoenix. Ask Robert what he uses.....

Kevin
 

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Banned
1991 560sl / 1987 300TDT / 1995 E300D / 1994 S350D / 1993 300SD /Cummins Diesel PU /2 airplanes
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861 Posts
You should substantiate that claim by having actual members report here who have used Zerex-instead of hearsay. It wouldn't make sense if that happened in mild climates and not hot climates like Phoenix. Ask Robert what he uses.....

Kevin
I don't believe that on a 107+ Deg day in rush hour stop and go traffic, AC on, you can run a MB diesel without a fan for very long. Zerex G-05 antifreeze/coolant works well for me in the 95 E300D. I have MB fluid in the S350D and that works fine too. Pure water would transfer heat better, but there's a big downside to that. ;)
 

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Banned
1993 400E
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7,361 Posts
!st, G-05 & G-48 is in the list of approved coolants for MB, spec 325.0.

2nd, here's the bulleten........

SUBJECT: DEALER TECHNICAL BULLETIN 28/99

28/99-1 RECALLS AND SERVICE CAMPAIGNS: WHEN REPAIRING ANY VEHICLE, ALWAYS CHECK THE VEHICLE MASTER INQUIRY FOR OPEN CAMPAIGNS


28/99-2 GROUP 20 - ALL PASSENGER CAR MODELS, COOLANT: For your information, recently the factory started using TWO kinds of engine coolant anti-freeze. The original one is tinted yellowish and the new one is tinted bluish. Both coolant anti-freezes are compatible with each other.

H. Polz, Service Engineering

HPdg 6-8-99
 

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E320/E250 Bluetec Ford F350 6.7l
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36,723 Posts
I don't believe that on a 107+ Deg day in rush hour stop and go traffic, AC on, you can run a MB diesel without a fan for very long. Zerex G-05 antifreeze/coolant works well for me in the 95 E300D. I have MB fluid in the S350D and that works fine too. Pure water would transfer heat better, but there's a big downside to that. ;)
You missed my reply in other topic. I had our W210 driven at 102-105F in city traffic and with no engine fan the engine went to 95C. When I stop the car at Home Depot and left it idling with AC on the temperature dropped to 92C while I check the electric fans running on slow. At 70mph on freeway it was 78-80C.
I am still in process of testing another W210 that I bought a week ago. Come with green coolant :eek: and while driven in 90F the engine was steady at 90C. First thing I did at home is to flush the system and put pee stuff. So far I drove it in 95F and the engine did not exceed 85C. The fan clutch seems shot.
 
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