Safe to drive with engine code P0128?
Thread Starter
Member
Joined: Nov 2014
Posts: 76
Likes: 1
From: Edmonton AB
ML550 C350
Safe to drive with engine code P0128?
The CE light came on, on our 2010 ML 550, P0128, which was thermostat or coolant temperature.
I have not had a chance to have it looked at or check if it's just low coolant.
Is the car safe to drive in the meantime?
Also how do I check the coolant level? If that's all it is what type of coolant should I buy?
Other thoughts?
I have not had a chance to have it looked at or check if it's just low coolant.
Is the car safe to drive in the meantime?
Also how do I check the coolant level? If that's all it is what type of coolant should I buy?
Other thoughts?
Member
Joined: Jul 2005
Posts: 114
Likes: 24
P0128 simply means that your coolant temperature is not reaching the desired temperature in the recommended time. It is staying cooler than it should. Doesn't hurt the engine. But you will experience cold to warm air if you need heat in the car.
Check out this video on replacing the thermostat:
Check out this video on replacing the thermostat:
