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SL600- Strange Noise from rear

SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL600- Strange Noise from rear

Old 04-16-2019, 06:58 PM
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SL600- Strange Noise from rear

Hi. Can anyone please advise on what this noise could be. Iím thinking fuel pump, looking to buy this car/ my mechanic hasnít looked into it yet. I called renntech to ask what other work was done besides a tune- they said fuel pump, fuel controller and filter.

Could an upgraded pump sound like this?

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Old 04-16-2019, 08:17 PM
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All my cars are blown! '11 E350 Diesel P2 Sport; '03 SL55 AMG Pano
Not sure what the noise is you’re describing. Things that should make noise are the top hydraulic pump, but only when operating top, and the PSE pump that runs the pneumatic systems like door locks and seats. PSE should shut off after a short time, and will if a leak is detected.
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Old 04-17-2019, 01:04 PM
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2010 C300 4MATIC
Fuel pump baffle
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