Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-21-2006, 07:56 PM
Registered User
 
Join Date: Jun 2006
Posts: 5
Do I need an oxygen sensor?

I have a 1987 mercedes 190E, i just had it smogged and it passed, but the hydrocarbons are pretty high. Doing some research online, it said that it may need a new sensor. As far as I know, it;s the original one in there (244k miles)
Is this a fairlyeasy thing to replace?

Reply With Quote
  #2  
Old 06-21-2006, 08:00 PM
Monomer's Avatar
Colonel Blitz
 
Join Date: Jan 2006
Location: Detroit, MI
Posts: 836
I'd put a new one in.



given a lot of PB is used, and is soaked in, yes; it's easy.
__________________
-1983 VW Rabbit LS Diesel (5speed, VNT/Giles build)
Reply With Quote
  #3  
Old 06-21-2006, 10:13 PM
Strife's Avatar
General Purpose Geek
 
Join Date: Apr 2004
Location: KY USA
Posts: 2,238
If it is the original one and still works, maybe you could sell it back to Bosch for analysis on how it lasted as long as it did
__________________
86 560SL
With homebrew first gear start!
85 380SL
Daily Driver Project

http://juliepalooza.8m.com/sl/mercedes.htm
Reply With Quote
  #4  
Old 06-22-2006, 11:25 AM
mmansilla's Avatar
Registered User
 
Join Date: May 2006
Location: Santago, Chile
Posts: 12
Quote:
Originally Posted by hockey7711
I have a 1987 mercedes 190E, i just had it smogged and it passed, but the hydrocarbons are pretty high. Doing some research online, it said that it may need a new sensor. As far as I know, it;s the original one in there (244k miles)
Is this a fairlyeasy thing to replace?
Your sensor is too old. Change it, emmisions and fuel economy will improve. However, a vacuum leak can lead to high HC readings. Check for a leak first.
Reply With Quote
  #5  
Old 06-26-2006, 02:27 PM
Registered User
 
Join Date: Jun 2006
Posts: 5
Dealer response

I just called a local MB dealer to findout what it would cost to change the o2 sensor. I told him that I have 244K and never had it changed. He said that maybe it doesn't need it....bring it in for an estimate, it may be something else.
He suggested a cat. converter. I changed that 2 years ago.
As usual they want me to bring it in to give me a list of work that it needs.
So predictable.
Reply With Quote
  #6  
Old 06-26-2006, 02:30 PM
Registered User
 
Join Date: Jun 2006
Posts: 5
Pb?

Quote:
Originally Posted by Monomer
I'd put a new one in.



given a lot of PB is used, and is soaked in, yes; it's easy.

What is PB?
Reply With Quote
  #7  
Old 06-26-2006, 07:22 PM
Registered User
 
Join Date: Sep 2004
Location: Seattle
Posts: 1,971
I am guessing he means lead. Oil consumption can also cause the O2 sensor to become sluggish.

Mike
__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra
Reply With Quote
  #8  
Old 06-26-2006, 07:27 PM
Fixin' anything moving
 
Join Date: Sep 2004
Location: Fort Worth, TX
Posts: 247
I am assuming he means a liquid wrench and not lead (e.g., rust away, the spray that loosens sticky bolts). Replace it - you can get it realitvely nexpensive on ebay - you can rent a socket usually from autozone for free. Then all you need is to soak it in for a day (several applications a day_ and have a breaker bar and some muscle.
__________________
1983 560SL Megasquirted (originally 380SL)

My former Mercedes:
1985 300SD ~190k
1990 560SEL
2000 C220 CDI
1983 380SEC 102k dual-chain conversion
2000 C280 70k (sold)
1987 300DT (W124 - sold)
1972 220D (sold)
1971 220D (sold)
Reply With Quote
  #9  
Old 06-26-2006, 08:49 PM
tvpierce's Avatar
Registered User
 
Join Date: Feb 2002
Location: Portland, ME
Posts: 612
PB is PB Blaster penetrating fluid.

Liquid Wrench is usless as a penetrant for freeing up rusted fasteners -- it's a good cleaner, and wet lubricant. But when it's gone, so are the lubricating properties.

Several days of multiple applications of PB Blaster can save you a lot of headaches.

Jeff Pierce

__________________
Jeff Pierce

Current Vehicles:
'92 Mercedes 190E/2.3 (247K miles/my daily driver)
'93 Volvo 940 Turbo Wagon (263K miles/a family truckster with spunk)
'99 Kawasaki Concours
Gravely 8120
Previous Vehicles:
'85 Jeep CJ-7 w/ Fisher plow (226K miles)'93 Volvo 940 Turbo Wagon
'53 Willys-Overland Pickup
'85 Honda 750F Interceptor
'93 Nissan Quest
'89 Toyota Camry Wagon
'89 Dodge Raider
'81 Honda CB 750F Super Sport
'88 Toyota Celica
'95 Toyota Tacoma
'74 Honda CB 550F
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 06:06 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page