SL/R231: Coolant loss and overheating
Thread Starter
Newbie
Joined: Nov 2022
Posts: 10
Likes: 1
From: North San Diego County
2014 SL550
Coolant loss and overheating
My 2014 SL550 overheated...but not according to the gauge. I pulled into the driveway to smell coolant, opened the hood and it's spraying out of the front of the engine..,likely the thermostat housing. Nothing in the reservoir. I had no puddles no massive leaks to give me any warning, the coolant was gone. I put in almost 2 gallons of water,,,pretty empty.
The car was towed and the diagnosis is water pump and some other plastic parts, $1600.
Anyone else lose a water pump? What was the damage? Just curious.
The car was towed and the diagnosis is water pump and some other plastic parts, $1600.
Anyone else lose a water pump? What was the damage? Just curious.
Joined: Nov 2016
Posts: 7,847
Likes: 3,498
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
I had a coolant hose come off. Are you sure it's your water pump?
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https://mbworld.org/forums/sl-class-...g-morning.html
Thread Starter
Newbie
Joined: Nov 2022
Posts: 10
Likes: 1
From: North San Diego County
2014 SL550
I already had that happen to me...this is round 2 of cooling issues.
Garage says it was water pump. I never saw any fluid, so it left while driving. This diagnosis makes sense.
Mine blew the hose when I pulled into my garage...a bit messier to clean up than yours
I was concerned about a head gasket. I had just had my car serviced and I believe they overfilled the reservoir. There is a max because the stem is closed.
Garage says it was water pump. I never saw any fluid, so it left while driving. This diagnosis makes sense.
Mine blew the hose when I pulled into my garage...a bit messier to clean up than yours
I was concerned about a head gasket. I had just had my car serviced and I believe they overfilled the reservoir. There is a max because the stem is closed.
MBWorld Fanatic!
Joined: Feb 2021
Posts: 1,419
Likes: 738
From: Nor-Cal
2020 GLC300 -2014 Sl550 - 1997 SL600
I already had that happen to me...this is round 2 of cooling issues.
Garage says it was water pump. I never saw any fluid, so it left while driving. This diagnosis makes sense.
Mine blew the hose when I pulled into my garage...a bit messier to clean up than yours
I was concerned about a head gasket. I had just had my car serviced and I believe they overfilled the reservoir. There is a max because the stem is closed.
Garage says it was water pump. I never saw any fluid, so it left while driving. This diagnosis makes sense.
Mine blew the hose when I pulled into my garage...a bit messier to clean up than yours
I was concerned about a head gasket. I had just had my car serviced and I believe they overfilled the reservoir. There is a max because the stem is closed.
I’m assuming you checked oil and no signs of coolant?
Mileage? When you say you had your car serviced, did they replace the coolant?
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