Low coolant level
Thread Starter
MBWorld Fanatic!
Joined: May 2005
Posts: 1,276
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1991 964 Turbo, 2002 Black E55, 2002 Black E55 " The Beast"- 2014 E63s
Low coolant level
Noticed some coolant drops on the garage floor towards the passenger side front of the car. Also noticed their was some white residual around the reservoir cap and around it. Mechanic friend had the car jacked up for some maintenance related stuff and did not think the coolant lines were leaking
Could it just be the cap, might not have been tightly closed or might not be sealing the reservoir appropriately?
I did fill it up, cleaned the area around it and we'll see what happens?
Any suggestions?
Could it just be the cap, might not have been tightly closed or might not be sealing the reservoir appropriately?
I did fill it up, cleaned the area around it and we'll see what happens?
Any suggestions?
Last edited by C2 Turbo; Oct 8, 2022 at 07:52 PM.
MBWorld Fanatic!
Joined: Jan 2012
Posts: 1,043
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From: NYC
E63S
Read a thread on here where they found a minute leak from the expansion tank. The stream of coolant shooting out was as "thin as a thread". May be look around the tank next time you park after a drive.
Thread Starter
MBWorld Fanatic!
Joined: May 2005
Posts: 1,276
Likes: 259
1991 964 Turbo, 2002 Black E55, 2002 Black E55 " The Beast"- 2014 E63s
Junior Member
Joined: Jan 2022
Posts: 21
Likes: 14
2014 E63S
I've been chasing coolant leaks on my car since I got it. One was a cracked reservoir that wasn't noticeably leaking, I found the crack because of the white buildup in a line on the side of the reservoir. Another place to check is the water pump. There's a weep hole behind the pulley that will drip as the shaft seal starts to fail. That one's hard to see, but you can check it with an endoscope or by getting creative with a mirror. If it were driver side front, I'd say to check back by the heater core. I had a leak there run along the body to drip by the front corner.
