Hello all,

I have a 99 E300 Turbodiesel. I just noticed that my muffler is making a popping noise. I thought there was a hole in the muffler, but when I jacked the car up to look, I didn't a hole. The muffler looks almost new, no rust or anything.
My brother has the same car and his only has 50K miles on it. I had him start his car and I can hear the popping sound coming from his muffler also. I jacked his car up and looked at the muffler and it was the same as mine. Looks almost new.

Anyone else experiencing this problem?

Is this popping sound coming from the muffler normal? Could it be that something inside the muffler is broken?

Thanks

I notice no particular noise coming from my exhaust. Just normal noise slightly dampend by the turbo.

I have a recent set of muffler (3 yrs ago) that came directly from the dealer (previous owner).

Bye

__________________
BigBen

'98 E300 Turbodiesel 244 000km
RIP '92 300D 2,5 Turbo 632 859,4km due to engine failure

Are you certain that what you are hearing isn't just the diesel "clatter" which is typical? To people used to gas engines this can be mistakenly thought to be a fault.

__________________
Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

Thanks for the replies, but I'm pretty sure the noise is not diesel clatter. My car is pretty quiet for a diesel and this is coming from the rear. I can clearly hear it coming from the muffler when I jacked it up to look at it.

It's like a puttering sound. To me, it sounds like the resonater or something inside the muffler has been broken.

I'm hesitant to change the muffler because I looked at my brothers car and his sounded the same and his car only has 50K miles on it.

I was just wondering if anyone else had this problem or if both of our mufflers need to be replaced.

Did you check the top of the muffler and the tailpipe connections. I had a slight leak on the connection to the tailpipe, it was on top of the pipe.

__________________
Dennis
2006 E320 CDI Black/Black Leather. Nav, HTD Seats HK stereo 32000 miles.
2000 VW Passat 1.8t 300,000 miles as of Dec 09, 2009 original owner
1997 E300d Silver 300,000 miles As of Jan 05, 2010
3rd owner SOLD

Are all the rubber hangers in good condition? IIRC, there's one back by the tail pipe and another connected to a bracket at the trans.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

I just went through my second exhaust system - from the big catalytic converter drum to the tail pipe. Check the bends in the piping. Mine blew holes in the bends long before anything looked other than brand new on the muffler itself. My first replacement was from the dealer. Big bucks.

The new one I have now is from TimeValve. Much better quality stainless steel, and I had them make the pipe slightly larger diameter tubing. Makes a nasty rasp when I really press the throttle down hard - but it is leak free and carries a true "lifetime" warranty.

Jim

__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)