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Lower pressure psi?

Woodst

New Member
Joined
Jan 14, 2024
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9
Location
Herefordshire
Car
Cls shooting brake
Anyone know what pressure there should be from tank fuel pump (lower pressure) ? I'm getting 42psi. 2015 Cls 220d. Getting lower pressure on rail p0087 and limp mode on kickdown suspect weak pump.
 
Anyone know what pressure there should be from tank fuel pump (lower pressure) ? I'm getting 42psi. 2015 Cls 220d. Getting lower pressure on rail p0087 and limp mode on kickdown suspect weak pump.
Check injector leak off first and probably worth changing fuel filter too
 
Leak off OK and filter done been to Indi and star says everything is OK but pressure from tank isn't monitored and the Indi didn't do any actual tests. They just not interested. According to online parts spec the Operating pressure is 4.7 bar so I'm going to say it's weak cause low pressure from HP
 
Leak off OK and filter done been to Indi and star says everything is OK but pressure from tank isn't monitored and the Indi didn't do any actual tests. They just not interested. According to online parts spec the Operating pressure is 4.7 bar so I'm going to say it's weak cause low pressure from HP
Yeah sounds like a weak pump 👍
 
Does anyone have a workshop Manual for cls 220d 2015.
 

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