PS675

SUBJECT:
GROUP
Chassis
MODEL
All Applicable
Models
NUMBER
PS675
DATE
August 2020
BRAKE CALIPER LEAK INSPECTION
This Pitstop provides information related to a brake caliper fluid/oil substance found on some
Kia vehicles, due to possible excess assembly oil applied during assembly. When diagnosing,
the oil may be confused with brake fluid leaking, as they both have similar color and
appearance. It is important to determine if the substance is excess assembly oil or brake fluid.
To properly determine which substance is present, inspect the oil/fluid using the required
process and items shown in the table below.
Required items:
Cotton Swab
Sheet of Paper
Oil/Water based pen
 Confirm where the suspected leak is originating from.
 If a leak appears from the eyebolt (A), replace copper gaskets, torque to specification
and test for leak.
 If the oil appears to be from the caliper piston or piston boot (B), proceed to page 2.
A
B
Printed Pitstop copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
Page 1 of 2
Inspection Procedure:
1. Obtain a large oil sample using the cotton swab from the suspect area.
2. With the oil or water based pen, draw multiple lines going across the sheet of paper.
3. With the cotton swab containing the oil sample, wipe the fluid across the pen marks.
A. If the pen ink smears it can be determined that the leak is brake fluid. Refer to the
applicable repair procedure chapter in the applicable Shop Manual on KGIS.
B. If pen ink does not smear it can be determined that the substance is excess assembly
oil. Proceed to wipe clean any excess assembly oil using a clean shop towel.
A
B
Printed Pitstop copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
Page 2 of 2