Two new rear calipers both leaking between banjo bolt and caliper?

2018 MERCEDES BENZ 250SE

44,000 MILES • 2.0L • 4 CYL • TURBO • 2WD • AUTOMATIC

WJSMITH18

MEMBER
2 POSTS

Also, one caliper does not float only when I loosen it up. The vehicle listed above is a CLA 250 4MATIC.

Dec 9, 2022 at 10:48 AM

STRAILER

✓ASE Certified Mechanic
54,832 POSTS

Make sure the surfaces are clean and that you have a copper sealing washer on both sides of the banjo fitting. Also look for any irregularities in the sealing surfaces on both the caliper, bolt and fitting. Also, clean and lubricate the slides #2 on the diagrams below.
Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.

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Dec 10, 2022 at 11:59 AM

WJSMITH18

MEMBER
2 POSTS

Thanks Ken, the leaking went away. but the left caliper sticks whenever I tighten down on the bolts, I really think this caliper is out of spec.

Dec 10, 2022 at 2:06 PM

STRAILER

✓ASE Certified Mechanic
54,832 POSTS

I am glad you got the leak fixed was it the copper washers? It could be a caliper issue or he brake rotor is not on all the way? Can you upload images of the problem so I can see what's going on?

Dec 12, 2022 at 11:57 AM