There's a bomb in my car!!!!!
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Member
Joined: Feb 2006
Posts: 123
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From: Hong Kong
'02 C32; '02 M5; '08 328i (US)
There's a bomb in my car!!!!!
Ok, so I picked up the '02 C32 finally, 26,8xx km on the clock, drives and runs very well... The steering was extremely light and it turned out the previous owner put like 42lbs in the front and 36lbs at the back XD Fixed it right away and it's now running on 34/36 lbs... The ride quality improved drastically, finally feel like a MB 
On to my problem... After pushing the car a little harder for a bit, I noticed there's a fast ticking sound coming from the passenager side of the comparment, it's not loud at all and it doesn't sound like it's coming from the engine.. Any guess what this sound could be? It goes away after like several minutes slowing down, but comes right back when I launch it or I guess when the supercharger kicks in hard. Maybe my GF hated me for not letting her drive tonite and planted a bomb? hahahaha
On to my problem... After pushing the car a little harder for a bit, I noticed there's a fast ticking sound coming from the passenager side of the comparment, it's not loud at all and it doesn't sound like it's coming from the engine.. Any guess what this sound could be? It goes away after like several minutes slowing down, but comes right back when I launch it or I guess when the supercharger kicks in hard. Maybe my GF hated me for not letting her drive tonite and planted a bomb? hahahaha
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Joined: May 2006
Posts: 4,539
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From: Southern Cal
a C32 AMG & S-Works Tarmac
You may be correct about that bomb. It's set to detonate the day after your warranty expires. (Mine goes off this coming Sunday).
Look to find shards of tranny, S/C intercooler, seat controllers and bushings strewn about your garage that morning. The only way to neutalize this bomb is by throwing large sums of cash, directly at the vehicle (as it sits in the garage of your dealership/mechanic).
Your mission, Mr. M5CLK, is to escape this bomb with your credit score, intact.
This message will self-distruct in 5 posts................
Look to find shards of tranny, S/C intercooler, seat controllers and bushings strewn about your garage that morning. The only way to neutalize this bomb is by throwing large sums of cash, directly at the vehicle (as it sits in the garage of your dealership/mechanic).
Your mission, Mr. M5CLK, is to escape this bomb with your credit score, intact.
This message will self-distruct in 5 posts................
Last edited by ScottW911; Mar 26, 2007 at 05:04 PM.
Senior Member
Joined: Nov 2006
Posts: 259
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From: Ottawa, Ontario
C32 AMG - in Pewter
If not already replaced, the I/C pump is a ticking bomb, even if you hear nothing 
Go on the highway and start cruising at about 2200 RPM. Then very slowly increase your speed, to avoid S/C from engaging. Keep going is slowly until you cross the 2900 RPM. At that point the S/C must always engage, so if the theory is correct, you should hear ticking with cruising above 2900 RPM.
Go on the highway and start cruising at about 2200 RPM. Then very slowly increase your speed, to avoid S/C from engaging. Keep going is slowly until you cross the 2900 RPM. At that point the S/C must always engage, so if the theory is correct, you should hear ticking with cruising above 2900 RPM.
Last edited by gkstar; Mar 26, 2007 at 05:02 PM.
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From: Virginia
2002 C32
If not already replaced, the I/C pump is a ticking bomb, even if you hear nothing
Go on the highway and start cruising at about 2200 RPM. The very slowly increase your speed, to avoid S/C from engaging. Keep going is slowly until you cross the 2900 RPM. At that point the S/C must always engage, sou if the theory is correct, you should hear ticking with cruising above 2900 RPM.
Go on the highway and start cruising at about 2200 RPM. The very slowly increase your speed, to avoid S/C from engaging. Keep going is slowly until you cross the 2900 RPM. At that point the S/C must always engage, sou if the theory is correct, you should hear ticking with cruising above 2900 RPM.
Are you sure it is the passenger side? There's some sort of electric valve on the driver's side forward of the ESP ABS module that makes a really loud intermittent ticking in my car.
Regards,
Pete
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From: Southern Cal
a C32 AMG & S-Works Tarmac
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Joined: Nov 2006
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From: Ottawa, Ontario
C32 AMG - in Pewter
If it is the purge valve (it is true that I/C pump is unlikely to sound like that), then I seem to recall a service bulleting about that requiring bracket/mount replacements or other, I think. There is a list of TSBs available at the W203 section of the forum or here, a search may help.
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Senior Member
Joined: Feb 2005
Posts: 484
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From: Bay Area CA
2002 C32
Ok, so I picked up the '02 C32 finally, 26,8xx km on the clock, drives and runs very well... The steering was extremely light and it turned out the previous owner put like 42lbs in the front and 36lbs at the back XD Fixed it right away and it's now running on 34/36 lbs... The ride quality improved drastically, finally feel like a MB
On to my problem... After pushing the car a little harder for a bit, I noticed there's a fast ticking sound coming from the passenager side of the comparment, it's not loud at all and it doesn't sound like it's coming from the engine.. Any guess what this sound could be? It goes away after like several minutes slowing down, but comes right back when I launch it or I guess when the supercharger kicks in hard. Maybe my GF hated me for not letting her drive tonite and planted a bomb? hahahaha
On to my problem... After pushing the car a little harder for a bit, I noticed there's a fast ticking sound coming from the passenager side of the comparment, it's not loud at all and it doesn't sound like it's coming from the engine.. Any guess what this sound could be? It goes away after like several minutes slowing down, but comes right back when I launch it or I guess when the supercharger kicks in hard. Maybe my GF hated me for not letting her drive tonite and planted a bomb? hahahaha
If so it might be the heat shield rubbing on the prop shaft (when it gets hot it expands and starts touching the prop shaft), I had this and it was driving me nuts, the garage kept saying NFF until it did it when I picked the car up and so the service tech and I went for a drive together, then they fixed it.
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Joined: Nov 2006
Posts: 9,137
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From: California, USA
E63 P30, CL500 Sport
C32 Intercooler Pump Answers
2) If you go to Mercedes Dealership, it will cost you around $500. But there is a thread in here that details another way. Basically, you buy the pump from Ford Lightening (cost about $90 on e-bay), and then install it yourself...
Do a search in the C32 forum for Cheap IC Pump Replacement.3) Depends how much you want to pay?
Is there any online parts catalog for W203 somewhere btw?
Senior Member
Joined: Feb 2005
Posts: 484
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From: Bay Area CA
2002 C32
It depends, if it sounds like the symptoms I was describing then that's a known problem and they can fix it (there's a service bulletin that covers it), if it's something else then maybe.
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Joined: Sep 2006
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From: Dar es Salaam, Tanzania
ML63 AMG
You may be correct about that bomb. It's set to detonate the day after your warranty expires. (Mine goes off this coming Sunday).
Look to find shards of tranny, S/C intercooler, seat controllers and bushings strewn about your garage that morning. The only way to neutalize this bomb is by throwing large sums of cash, directly at the vehicle (as it sits in the garage of your dealership/mechanic).
Your mission, Mr. M5CLK, is to escape this bomb with your credit score, intact.
This message will self-distruct in 5 posts................
Look to find shards of tranny, S/C intercooler, seat controllers and bushings strewn about your garage that morning. The only way to neutalize this bomb is by throwing large sums of cash, directly at the vehicle (as it sits in the garage of your dealership/mechanic).
Your mission, Mr. M5CLK, is to escape this bomb with your credit score, intact.
This message will self-distruct in 5 posts................
Tee_Tz.
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Joined: Mar 2004
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From: 38° 52′ 51″ N || 94° 48′ 11″ W
'01 C320 || '14 Honda Pilot EX-L
There is a replacement bracket for the purge valve that quiets it completely. I don't have a 32 but I had mine replaced yesterday on my service visit. It is a freebie under warranty and if not it is minimal cost. This is a common issue on the C class. I had it replaced on my 230 as well.
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Joined: May 2006
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From: Southern Cal
a C32 AMG & S-Works Tarmac
Yes, April 1 is my day. I've looked into every recommended company listed in this forum and they either do not work in California any more or they have dropped the C32 from any of their programs. So, it looks like I'm entering the big wide world of the unknown this weekend.
By the way, I'm taking the car in tomorrow, for one last CPO visit, to see if they might find anything wrong with the tranny or bushings. Even though I feel a big "jerk" at 1500 rpm, they claim it's just fine. They have never been able to find any bad bushings even though I hear the creaking and cracking.
Wish me luck,
Scott
By the way, I'm taking the car in tomorrow, for one last CPO visit, to see if they might find anything wrong with the tranny or bushings. Even though I feel a big "jerk" at 1500 rpm, they claim it's just fine. They have never been able to find any bad bushings even though I hear the creaking and cracking.
Wish me luck,
Scott
