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  #1  
Old 07-31-2005, 05:31 PM
4uky's Avatar
'91 190e 2.6
 
Join Date: Jul 2005
Posts: 41
What is this missing cap '91 190e

This is a real newbie question. (I actually got pretty competent wrenching my three 80's and 90's Saabs, but I'm having to learn this world now.) I'm attaching a picture I borrowed and edited from the site http://www.2phast.com/190e/. I've circled in red a cap over a tube. My car doesn't have the cap, the tube is open to the world. Is this hurting me?

Thanks.

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What is this missing cap '91 190e-tuneup-004.jpg  
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  #2  
Old 07-31-2005, 05:42 PM
Craig
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I'm having trouble telling for sure from the photo, but it looks like the dipstick for the auto transmission. Does the open "tube" lead back to the transmission area? If so, having that open is not good. Transmissions do not like dirt. I would replace the dipstick/cap and have your fluid/filter changed.
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  #3  
Old 07-31-2005, 05:50 PM
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Location: Huntington Beach
Posts: 329
I'll have to check mine out later, but that's not the transmission dipstick.
__________________
1990 190e 2.6 - The only one I can really call "My Car".

1987 190e 2.3 - The donor car's up and running, only mods are Euros and a Sony headunit. My Dad's runabout now.

1990 300e 2.6 - The parents' ride.
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  #4  
Old 07-31-2005, 06:12 PM
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That looks like the intake for the air pump. The air pump draws in atmospheric air and injects it into the exhaust. This helps heat up the cat, making it easier for the car to pass the european smog tests.
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  #5  
Old 07-31-2005, 08:28 PM
4uky's Avatar
'91 190e 2.6
 
Join Date: Jul 2005
Posts: 41
No, it's forward of that

Quote:
Originally Posted by Craig
I'm having trouble telling for sure from the photo, but it looks like the dipstick for the auto transmission. Does the open "tube" lead back to the transmission area? If so, having that open is not good. Transmissions do not like dirt. I would replace the dipstick/cap and have your fluid/filter changed.
No, the transmission dipstick is further back toward the firewall. This is something driven by the serpentine belt. Air pump makes sense.
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  #6  
Old 08-01-2005, 01:27 AM
carson356
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cap

yes, that is the air intake cap for the air pump, it is mercedes part number
104-140-00-81
look at the picture below

Last edited by carson356; 02-05-2006 at 02:32 PM.
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  #7  
Old 08-02-2005, 05:45 PM
4uky's Avatar
'91 190e 2.6
 
Join Date: Jul 2005
Posts: 41
Outstanding. Thanks.

MDB

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