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

SL/R230: Question re box in trunk

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Old Feb 10, 2018 | 11:16 PM
  #1  
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2011 mercedes sl550, 1995 corvette
Question re box in trunk

Being new to owning an MB, and being somewhat hands on, I am curious about things I dont recognize. Can anyone tell me what the little grey box behind the spare in the trunk is? Is it the tpm module? Has what looks like an airline attached, and some sort of connector in the back. 2011 SL550
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Old Feb 11, 2018 | 12:49 AM
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A picture would help, since you got that far in the trunk
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Old Feb 11, 2018 | 01:28 AM
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From: Nashville Tn
2011 mercedes sl550, 1995 corvette
[QUOTE=Ghostty;7378599]A picture would help, since you got that far in the trunk [/QUOTE

thought anyone that had an sl550 would know what it is. It’s grey, about 31/2”x 21/2 or so about 1” thickl. New to forum, not sure how to add pic just now

Last edited by ray0214; Feb 11, 2018 at 01:30 AM.
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Old Feb 11, 2018 | 05:13 PM
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From: Nashville Tn
2011 mercedes sl550, 1995 corvette
Originally Posted by ray0214
Being new to owning an MB, and being somewhat hands on, I am curious about things I dont recognize. Can anyone tell me what the little grey box behind the spare in the trunk is? Is it the tpm module? Has what looks like an airline attached, and some sort of connector in the back. 2011 SL550

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Old Feb 11, 2018 | 08:03 PM
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That's the PSE pump, supplies pressure/vacuum to the trunk latch and door actuators.
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Old Feb 11, 2018 | 08:07 PM
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Originally Posted by ItalianJoe1
That's the PSE pump, supplies pressure/vacuum to the trunk latch and door actuators.
thanks
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Old Feb 11, 2018 | 08:36 PM
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Originally Posted by ItalianJoe1
That's the PSE pump, supplies pressure/vacuum to the trunk latch and door actuators.
not to contradict that you say this is the pse pump, but when I️ google the pse pump, everything says it’s in the trunk on the left side under the roof pump. This small bix is in the center rear of the trunk. If I’m wrong pls correct me as I️ don’t really know what is where in sl550, do I’m trying to learn
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Old Feb 11, 2018 | 10:42 PM
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That is part A2208050119, which is a basically an accumulator tank for air used by the multi-contour seat system.
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