P0128 Coolant Temp Code
#1
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2017 E300
P0128 Coolant Temp Code
Ive done a lot of searching online and I understand it is probably the coolant temperature sensor gone bad. Funny thing is that it seems to be a common problem on older gen Mercedes, and I dont see a thread specifically for the 213. Anyone else have had issues with this? Code came on at 80K miles, 7 years of ownership. Cost to replace at dealer? TIA
#2
MBWorld Fanatic!
Thread Starter
Join Date: Jun 2008
Location: San Francisco, CA
Posts: 2,073
Likes: 0
Received 85 Likes
on
69 Posts
2017 E300
Ive done a lot of searching online and I understand it is probably the coolant temperature sensor gone bad. Funny thing is that it seems to be a common problem on older gen Mercedes, and I dont see a thread specifically for the 213. Anyone else have had issues with this? Code came on at 80K miles, 7 years of ownership. Cost to replace at dealer? TIA
#3
Super Member
Could be thermostat stuck open, engine doesn't get hot fast enough. Happened on my W212 E63, thermostat and included housing replaced under warranty.