Ive been driving around the SD a little more often as i got the old tug boat running better again. Ive noticed that my brakes are very loose or marshmellowy. I have to stomp down on the brakes for it to brake propely. My guess is the caliper's need replacing but the brake fluid looks kinda brown. Last i remember i didnt change the brake pad sensor's so that could be a possibility as well.

Checked the pads and they still look new, no squeals. The rotor is new as well.

Tell me what you experts think.

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Current:
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
01 Dodge Cummins

Previous
2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
1983 300SD
1987 300SDL
2002 Jetta TDI
1996 S420
1995 S500
1993 190E 2.6
1992 190E 2.3
1985 190E 2.3 5-Speed