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W212 AMG Discuss the W212 AMG's such as the E63

Will passenger side coolant line leak?

     
Old Feb 4, 2025 | 06:06 PM
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zk2004mb
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From: Jersey City
S63 Coupe
Will passenger side coolant line leak?
Many of us M157 owners have seen coolant leaking from the driver-side plastic lines. But did anyone ever find a leak on the passenger side?
The two lines are
  • 278-200-08-00
  • And 278-200-18-51
I don't see any potential leaking point. The first line has a rubber part but the aluminum seal should keep it in good shape. I'm wondering if it's necessary to take off the entire lines because the turbo side is very difficult to reach. Maybe a good alternative is to keep the lines and just replace the o-ring on the water pump side?

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Old Feb 4, 2025 | 10:25 PM
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2014 E63 AMG wagon 1965 Austin-Healey 3000 1970 AMC AMX
No plastic on that side so less prone to heat fatigue over time. I only replaced the O-rings as You mentioned.
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