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I've looked all over for answers but still coming up short so I'm hoping someone else here has delt with this. My wife's 2013 gl350 blue tech right after fixing the oil cooler seals started running out of fuel while still having half a tank. I don't think it's related to the oil cooler seal job but who knows. So I figured it was an issue with on of the pickups or transfer hose between the 2 sumps. I replaced the pass side pump with an OEM pump and tried to do the siphon pump on the other side but I was sent the wrong one so I closely inspecte lt and took it apart and did find some debris in the check valve so I figured maybey that was it. Cleaned everything out really well checked the crossover tube all o rings it all looked fine. Put it back together last night and put exactly 12.5 gal of fuel in it, drove it home all seemed well until today ran out of fuel again. Got to a station and it took 15 gal of diesel. When I pulled the tank last night the level was even in both sumps so my only thought is that it must be sucking air somewhere? I guess that driver's side pickup? Has anyone experienced this or similar issues?
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
