|
|
|
|
|
|
|
#1
07-31-2007, 10:11 PM
|
|||
|
|||
|
Mercedes Benz 1989 300E Catalytic Converter Help.
I just bought this car and it happened to fail Ontario's Emission test. It's a Mercedes Benz 300E 4dr 1989.
The people at the garage said I need to replace my catalytic converter and I also need to buy a new O2 sensor. They can't go on with the diagnosis as to why my car failed the E-test without those parts. The problem is, they want to charge me $1100 CDN for the parts, and $250 CDN for the labour.   I have seen catalytic converters for 50% - 80% cheaper than the mechanic's price. So my question is, do I need a Mercedes Benz 300E specific cat/con, or could I just buy one of those universal ones and get my mechanic at work to hook it up for me? I don't mind getting a Bosch O2 sensor. Please help me. I appreciate any help offered. Thanks a lot. 
|
|
#2
07-31-2007, 11:08 PM
|
|||
|
|||
|
Hi
I would diagnose the problem first. After I failed a test, the guy who tested also kindly offered to replace the catalytic converter - that is easy money for these guys. In the end, I diagnosed a faulty EGR valve. I do not understand why they need to replace the catalytic converter to go on with diagnosis? How did the car fail, can you provide the values from the test? Bruno
__________________
_ 1992 300TE 160 kmiles
|
|
#3
08-01-2007, 12:04 AM
|
|||
|
|||
|
It's an Ontatio E test
I know it failed CO2 emission. The limit is 1... and my car got a whopping 4.28. They basically said my exhaust is bad and I gotta fix it for them to continue diagnostics. As well as replacing the oxygen sensor. I really don't mind replacing the Cat/con, I just want to know if I can use a universal one instead of the $700 Mercedes Benz ones.
|
|
#4
08-01-2007, 03:21 AM
|
|||
|
|||
|
You probably mean CO? It could be due to bad mixture adjustment. I see no reason why you could not use a generic cat. Obviously, it may need more work to make it fit, but functionally it should be fine.
Bruno
__________________
_ 1992 300TE 160 kmiles
|
|
#6
08-01-2007, 10:54 AM
|
|||
|
|||
|
If your CO is 4.28 %, you're running way too rich.
This could well be the sign of a defective oxygen sensor. May be worth while replacing it, as you're also waisting a ton of fuel. I installed an aftermarket catalytic converter on my truck about 8 years ago, and it passes the Ontario Drive-Clean Test, every two years, with flying colors.  Mine is made by " Walker " Exhaust. Check with any good mufflershop.
__________________
2007 C 230 Sport.
|
 |
| Bookmarks |
|
|
Hybrid Mode
