Sl500 LEFT FRONT ABC VALVE LEAKING UNDER THE HEADLIGHT

[Loik]

Hey everybody I’m new here bought an sl500 03 last week and my front abc valve started leaking, the car been parked since then, even with all this leaks the car won’t sink, ive attached a picture and it’s leaking from top of the valve

 

[LostKiwi]

Hi and welcome. Your picture doesn't seem to have loaded?

 

[Loik]

 

[ajlsl600]

Not dropping because check valves are closed and Yr leak will not be on that line. But it must be fixed.

 

[00slk]

Been there, done that

 

[ajlsl600]

Same. Inside p/rear of front wing. Leaking pipe about 12 inch long. 100 quid from benz!! Only one tf.

 

[Loik]

this is driver side front valve that’s leaking, so how should I open it

 

[ajlsl600]

Get a print out from wis and go from there, you will need to be real fussy about keeping all clean. Any crxp you leave in or introduce will go thru system before getting filtered. Unless ur leak is from rtn line.
Filtering on rtn is cheapskate design. Theory is it will stay clean enough to get thru warranty, only way to mitigate is far more frequent oil changes than design. As most abc are not daily runners I wud be doin mine one a Yr. As with muy oils and filters.

 

[LostKiwi]

Remove the valve block then follow the rebuild guides on YouTube. There are plenty to choose from.
Scrupulous cleanliness is required.

Frankly I'm surprised it's the valve block as there aren't many places it can leak.

 

[ajlsl600]

90%seal and or o, ring. Or leaking from a screwed in sensor/switch. Even with benz cost cutting. V slim chance of crack in housing.

 

[Loik]

 

[Loik]

So it’s coming from that but right there, the one that no hoses connected

 

[Loik]

I mean the NUT **

 

[Loik]

 

[Loik]

Update so I got the nut out I’m gonna change the o ring and we will see

 

[LostKiwi]

Change the sealing washer too. That will be where the leak is.