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Discussion Starter #1
Greetings all,

I may have shot myself in the foot here, but I'm a new member/owner so hear me out. Recently, I ordered an OVP relay from Amazon for a whopping $20...the price was right, it was new so I said why not. Installed it in my 1991 190e and it seems to work sporadically. Sometimes it's fine (No ABS light, not sluggish, pulls pretty well) and other times it's the same as before (stalling, accelerator to the floor, ABS, etc). Question, is there a brand of OVP that you guys would recommend above others? I've seen a couple of brands that cost about 3 times as much as I paid. Did I buy cheap junk? What would be your recommendation? Thanks in advance.
 

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2000 :W220 - 1986 W201: 16v Nam,16v Euro- 2002:SL500 Silver Arrow.2002:Avalanche-
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2,263 Posts
Autohaus AZ :
Kaehler (KAE)
Overload Protection Relay; 9 Pin Connection; With 10Amp Fuse Protection
1 per car. Sale : $53.95 , I'm using this .
 

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1993 190E 2.0 Auto
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56 Posts
Stay away from any URO Parts or TruckTec ones.

Kaehler (KAE) are okay but not top tier/quality.

Best ones are OEM or Stribel.

If you want cheap OEM ones try these people. They are the parts dept of an official MB dealer (Georgia, I think?):
Genuine Mercedes Parts

I bought one for a W201 from them recently for $55 which was not that much more expensive than the third party ones on Rock Auto and Autohaus.
 

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'87--190E 2.3-16v(being rebuilt), '99--C230 Kompressor
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3,488 Posts
I have a KAE in my 2.6 right now only because I didn't want to wait a week for the dealer to get me an OEM version...no issues so far with its preformance
 

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93 190E 2.6; 82 300 SD Turbo
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1,686 Posts
I think I've still got the old single fuse style unit installed. It went fritzy about 4 years ago..I took it apart re-soldered and cleaned it up.. Put it back in and good to go...
 

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2000 :W220 - 1986 W201: 16v Nam,16v Euro- 2002:SL500 Silver Arrow.2002:Avalanche-
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2,263 Posts
Any one knows how much it cost of Bosch brand ?
 

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1991 190e 2.6 automatic
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760 Posts
i got mine off Auto Parts in Canada! - Canada Auto Parts Online and i dunno what brand it is, but it died after like 3 months. I get my usual stuff from there but i should have remembered the brand so i dont get it again. Funny thing is i had a spare original single fuse relay so i put THAT one in, and it is still in my car today. Although i do plan on buying a twin fuse DEALER relay when i feel like i got some extra cash to burn
 

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1997 S420
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341 Posts
I heard the dual fuse ones are the latest ones, and the single fuse is outdated. Am I correct?
 

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93 190E 2.6; 82 300 SD Turbo
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1,686 Posts
I heard the dual fuse ones are the latest ones, and the single fuse is outdated. Am I correct?
I believe so. I still have my single installed in the 190 though..
 

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93 190E 2.6; 82 300 SD Turbo
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1,686 Posts
Part Numbers from Mercedes EPC:




Parts.com listing for it, ships from Mercedes:
 

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W-1-2-3 Go!
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I remember some brands are KAE (Kaehler?), or Siemens.

@rurlndum: Do you know who manufactured the OVP relay sourced from your dealer? There should be a stamp on the unit itself.
 

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1993 190E 2.6
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106 Posts
The part # is 201-540-37-45. It has the Mercedes logo printed on it so it must be OEM. I cannot determine the manufacturer but it was made in Hungary.
 

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1993 190E 2.6 AMG "Alma", 1990 190e 2.6 Black, 2001 230SLK Magma Red
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944 Posts
Well I just got my URO crappy (hopefully not) from Rockauto and placed it today and here is a picture of the original one. I have one the very last w201 that rolled off the Bremen line so this is the most current OEM one used. Not sure if they were all same throughout production. I will post any thing I discover on the quality of the URO unit. Hopefully I can take it out later today but I am doing the Fuel filter for the 1st time and I discovered my rubber Fuel pump/Filter bracket hangers are shot. So my housing is on the ground. I think temporarily tie wraps may do the trick for now. Sorry off topic...
 

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