2016 GL350 Diesel Fuel Pumps and Knock Sensor Issues?
Thread Starter
Junior Member
Joined: Jan 2011
Posts: 40
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From: Greenwich, CT
2014 E350 4Matic; 2016 GL350 Bluetec; 2005 F430 Spider
2016 GL350 Diesel Fuel Pumps and Knock Sensor Issues?
2 weeks ago while driving around 65 mph on the highway our GL350 died without warning. Car was totally dead and would not start so it was towed to dealer. Took them days to figure it out. They finally determined that both fuel pumps failed and they claimed this is a rare failure. They replaced the pumps and then upon a test drive a yaw sensor failed which they claim is related to the car dying on the highway at speed. Once that was fixed shortly thereafter the check engine light came on which they diagnosed a knock sensor issue. Do you think that this knock sensor issue is related to the fuel pump failures? Car has 37,000 miles we are the first owner and we never had any trouble with it before the fuel pumps died. Car is still at dealer and foreman takes it home to monitor it.
We may want to buy the car at the end of the lease in August but we are getting worried about the reliability of the truck. Thanks.
We may want to buy the car at the end of the lease in August but we are getting worried about the reliability of the truck. Thanks.
Member
Joined: Feb 2018
Posts: 154
Likes: 18
From: South Florida
GL550
If you’re planning to buy the truck, get the extended warranty for the remaining time you’re planning to keep it (3 year tops), for peace of mind.
