SLK/R170: Air in Master Cylinder Reservoir
05-15-2016, 12:34 PM
#1
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2008 Crossfire Coupe
Air in Master Cylinder Reservoir
new guy here with 08 Crossfire aka Slk320
the brakes were spongy when I bought the car last month
i replaced the rotors and pads and have bled thoroughly with almost 2 liters of pentosin Dot4
always got air, finally went to the Speed-bleeders and I have to say that they are awesome.
I stayed at the business end while my wife pumped the pedal
we did all 4 last night with the speed-bleeders and once again this morning, and got a fair amount of air out of all wheels.
I did get 2 good size air bubbles out of the lefty rear after sitting all night.
So, with that said I can pretty confidentially, say that the system has been bleed and that there is no air.
The pedal is better, but i feel that it is still spongy (not as much)when i run the engine.
with the engine off I get a high hard pedal.
the purpose of this post is to get some feedback on the photo of the reservoir back lit by my flashlight.
the reservoir is full but i can clearly see a compartment in the front that is topped with about 3/16"-1/4" of air, is this a normal situation?
Can someone in the group put the flashlight to the side of your reservoir and tell me what you see?
thanks
the brakes were spongy when I bought the car last month
i replaced the rotors and pads and have bled thoroughly with almost 2 liters of pentosin Dot4
always got air, finally went to the Speed-bleeders and I have to say that they are awesome.
I stayed at the business end while my wife pumped the pedal
we did all 4 last night with the speed-bleeders and once again this morning, and got a fair amount of air out of all wheels.
I did get 2 good size air bubbles out of the lefty rear after sitting all night.
So, with that said I can pretty confidentially, say that the system has been bleed and that there is no air.
The pedal is better, but i feel that it is still spongy (not as much)when i run the engine.
with the engine off I get a high hard pedal.
the purpose of this post is to get some feedback on the photo of the reservoir back lit by my flashlight.
the reservoir is full but i can clearly see a compartment in the front that is topped with about 3/16"-1/4" of air, is this a normal situation?
Can someone in the group put the flashlight to the side of your reservoir and tell me what you see?
thanks
Last edited by budaman; 05-15-2016 at 02:29 PM. Reason: Correction
09-13-2018, 07:59 PM
#3
MBWorld Fanatic!
new guy here with 08 Crossfire aka Slk320
the brakes were spongy when I bought the car last month
i replaced the rotors and pads and have bled thoroughly with almost 2 liters of pentosin Dot4
always got air, finally went to the Speed-bleeders and I have to say that they are awesome.
I stayed at the business end while my wife pumped the pedal
we did all 4 last night with the speed-bleeders and once again this morning, and got a fair amount of air out of all wheels.
I did get 2 good size air bubbles out of the lefty rear after sitting all night.
So, with that said I can pretty confidentially, say that the system has been bleed and that there is no air.
The pedal is better, but i feel that it is still spongy (not as much)when i run the engine.
with the engine off I get a high hard pedal.
the purpose of this post is to get some feedback on the photo of the reservoir back lit by my flashlight.
the reservoir is full but i can clearly see a compartment in the front that is topped with about 3/16"-1/4" of air, is this a normal situation?
Can someone in the group put the flashlight to the side of your reservoir and tell me what you see?
thanks
the brakes were spongy when I bought the car last month
i replaced the rotors and pads and have bled thoroughly with almost 2 liters of pentosin Dot4
always got air, finally went to the Speed-bleeders and I have to say that they are awesome.
I stayed at the business end while my wife pumped the pedal
we did all 4 last night with the speed-bleeders and once again this morning, and got a fair amount of air out of all wheels.
I did get 2 good size air bubbles out of the lefty rear after sitting all night.
So, with that said I can pretty confidentially, say that the system has been bleed and that there is no air.
The pedal is better, but i feel that it is still spongy (not as much)when i run the engine.
with the engine off I get a high hard pedal.
the purpose of this post is to get some feedback on the photo of the reservoir back lit by my flashlight.
the reservoir is full but i can clearly see a compartment in the front that is topped with about 3/16"-1/4" of air, is this a normal situation?
Can someone in the group put the flashlight to the side of your reservoir and tell me what you see?
thanks
