Hi All,

I have an issue with one of my rear cats, left bank. Money is tight so im thinking of changing it myself after being appalled at the prices of what people are charging locally to have it changed compared to the prices I can source them for on the net.

I'm looking at hiring a ramp for a couple of hours and hope to have it swapped out pretty easy. however knowing how things go for me there will be something I have not thought of and something will come to bite me in the bum.

I was wondering if you kind people would have any words of advice???

I was hoping to make it to Coventry but would hate to turn up with a ill crossfire

Thanks in advance Zak

 

Hi Zak
The rear cats seem to be the most susceptible to failure, the two front ones seem to go on ok. Some owners have removed the rears rather than replace, and have found the car still passes our MOT emissions test without problems with just the fronts. The car was built to meet higher standards required of the USA market at the time. Ebay have replacement front sections for around 180.00 depending which side. Of course better to replace, but your choice. Good luck and keep us posted
Cheers

 

Hi Steve,

Thanks for your reply.

I think im just going to go ahead and give it a go. I found this link to a MB forum where some one has done it on an E320 - Slightly different i know but is the closest i have found with decent descriptions and pictures. Gave me a little confidence.

How to replace R/H catalytic converter - Part 1 - Mercedes-Benz Forum

We shall see.................i will keep you posted.

Ta Zak

 

Well..........

So today I was given the name of good automotive welding place and decided to give them a call.

In the short term I have decided to have them cut out and straight throughed. I hope it will pass the MOT, which isn't until September so I have a little while to save for them to be replaced if they need to.

It feels like it has made a difference and there is defiantly a different exhaust note, to my liking.

Hope to see many of you at Coventry.

Zak

 

I removed my rear cats and "H" pipe and replaced with a "X" pipe. I left the resonator (SRT6) in place for a little back pressure and removed the muffler. Runs strong and sounds sweet! X-pipe eliminates the drone completely. Exhaust note comes alive only when I get on it, and is only heard out the back.

 

[QUOTE=Steve - UK;786536]Hi Zak
The rear cats seem to be the most susceptible to failure, the two front ones seem to go on ok. Some owners have removed the rears rather than replace, and have found the car still passes our MOT emissions test without problems with just the fronts. The car was built to meet higher standards required of the USA market at the time. Ebay have replacement front sections for around 180.00 depending which side. Of course better to replace, but your choice. Good luck and keep us posted
Cheers [/QUOTE


I realize that improved MPG is down to driving habits, but will removing the rear cats help to increase the MPG as there is less resistance in the exhaust system?


UKKen .

 

Hi Ken,

I'm coming up to the meet at Coventry on Sunday and the MPG thing is one thing i would like to know the answer too myself.

I do a journey once a month to St Albans (120 Miles) and my ECU App (Dash Command) states i average 30-31 MPG. Although this may not be accurate i haven't changed anything else if there is an increase it must have done something.

I am hoping for slight increase but i'm not expecting miracles, not with my heavy foot anyways.

Ta Zak

 

Zak. Looking forward to touching base with you. The UKXF meets are always great fun.


See you there


UKKen.