Vacuum hose loose
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Junior Member
Joined: Mar 2020
Posts: 25
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2002 CLK 320
Vacuum hose loose
OK so recently my 02 clk320 started running really rough. So I scanned for codes and I got p0300, p0304, p0305. I plan to change the fuel injectors and coil packs. I just changed the plugs and wires not even 30k miles ago. I added a bottle of techron complete fuel system cleaner prior to my last fill-up less than 100 miles ago. My problem though is whenever it starts running really rough when accelerating I noticed this vacuum hose circled in the picture keeps coming loose. What hose is this it's toward the back of the engine on the other side of the firewall in front of the brake booster. It seems to come loose on its own while driving. Tyia
Junior Member
Joined: Oct 2023
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2001 clk200 avantgarde komp. convertible
CLK 200 (1998-2006) Obsolete part
Welcome to the modern world."Loose battery vent pipe"
. Now an obsolete part. Modern batteries are sealed units, and do not require venting.
. Now an obsolete part. Modern batteries are sealed units, and do not require venting.
Thread Starter
Junior Member
Joined: Mar 2020
Posts: 25
Likes: 2
2002 CLK 320
