Brake system, Brake master cylinder — brake fluid level check – Ram Trucks 2015 ProMaster Commercial - Diesel Supplement User Manual

Page 103

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• Do not change the thermostat for Summer or Winter

operation. If replacement is ever necessary, install

ONLY the correct type thermostat. Other designs may

result in unsatisfactory engine coolant (antifreeze)

performance, poor gas mileage, and increased emis-

sions.

Brake System

Brake Master Cylinder — Brake Fluid Level Check
The fluid level of the master cylinder should be checked

when performing under the hood service, or immedi-

ately if the “Brake System Warning Light” indicates

system failure.
The brake master cylinder has a translucent plastic

reservoir. On the outboard side of the reservoir, there is a

“MAX” mark and a “MIN” mark. The fluid level must be

kept within these two marks. Do not add fluid above the

full mark because leakage may occur at the cap.

With disc brakes, the fluid level can be expected to fall as

the brake linings wear. However, an unexpected drop in

fluid level may be caused by a leak and a system check

should be conducted.
Refer to “Fluids, Lubricants, and Genuine Parts” in

“Maintaining Your Vehicle” for further information.

WARNING!

Use only manufacturer’s recommended brake

fluid. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further
information. Using the wrong type of brake fluid
can severely damage your brake system and/or
impair its performance. The proper type of brake
fluid for your vehicle is also identified on the
original factory installed hydraulic master cylinder
reservoir.

(Continued)

6

MAINTAINING YOUR VEHICLE 101

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