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Mercedes-Benz E-Class Maintenance and Repair

1094 messages,  Last post on Oct 21, 2009 at 5:02 PM

You are in the Mercedes-Benz E-Class Forum. Your Hosts are pat & karens

What is this discussion about? Mercedes-Benz E-Class, Sedan, Wagon


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#889 of 1094
Re: Safety news/ Headgasket [ccmbduong1] by ray_h1
Dec 23, 2006 (10:18 am)
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Replying to: ccmbduong1 (Dec 23, 2006 4:14 am)

A head gasket leak could cause exterior oil dripping under certain conditions. But, before I assumed the worst, I'd be looking at the more likely possibility of a benign (if somewhat messy) valve cover gasket leak. You might remove the radiator or purge tank cap before starting up in the morning to inspect whether there's any oil floating on the surface of the visible coolant. If not, that's a reasonably good sign that your head gaskets are OK. If you do see an oil slick on the surface of the coolant, you got trouble. If oil's in the coolant, that means coolant's very likely also in the motor oil. Antifreeze contamination in motor oil is a serious matter because its presence leads to rapid erosion of the softer tin, copper, and lead bearing metals if not attended to quickly.
#890 of 1094
Re: smoking E 350, and I don't mean fast [hawkeyes2] by microrepair
Dec 27, 2006 (4:50 pm)
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Replying to: hawkeyes2 (Nov 20, 2006 4:04 pm)

Jeff,
 
I haven't logged in for a few weeks and I've missed a lot of good stuff that I can relate to. First, there are some generic things to worry about on a used MB. Both of mine needed front end rubber bushings on tie rod ends and sway bars in the 70-80 K miles range. Since both of my cars had Starmark, that repair was free. It can run as high as $1100 for replacement of ALL bushings in the front end. Symptom is a thunk in the front end as you go over small pavement cracks, etc.
 
Others have mentioned brakes and rotors. I think I've found a solution to the fast wear and the excessive dust on the wheels. A year ago I bought PB brand pads and rotors for the front end and they work as well as the MB brake parts and with almost NO dust. I've only had to wash my wheels every 3-4 months instead of every 2-3 weeks..! And the parts cost about half what the MB parts cost. I bought them from Smitty's Parts Service on the web. I just put the same stuff on the rear and expect the same results. I don't know yet if they will last much longer than the OEM parts, but for the lack of dust and for the lower cost, I am happy so far.. I had all the brake parts installed by a local mechanic for a lot less than the MB dealer's labor charge too..!
 
And since you're looking at a 99, you shouldn't have to worry too much about head gaskets. My 96 needed a head gasket at 115K miles which was 30K miles earlier than normal for the straight six. (It is a design defect on that engine!) As far as I know, the V6 is very reliable; I've heard nothing bad about it so far..
 
My '01 does have a few more gremlins of the electrical type than the 96 did, but it does have more stuff to go wrong. Nothing serious so far but every once in a while when I open the drivers door, the alarm goes off even though the door was NOT locked!! And gee, even if it were locked how would I be able to open it? This has happened 6 or 7 times in the last year and the dealer replaced a door switch, but it has done it 2 more times since then.
 
Good luck on your hunt for a clean one..!
 
Fred
#891 of 1094
Re: 2006 E350 Climate control [tnguyen17] by microrepair
Dec 27, 2006 (4:55 pm)
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Replying to: tnguyen17 (Dec 01, 2006 8:18 am)

When I got my first E-class ( a used 96) I couldn't believe how bad the AC was and complained to the service dept. at my dealership. The simple fix was to make sure that the center vent outlets on the dashboard were NOT aimed upwards, but aimed horizontal or downward. When the vents are sending air UP, the air is aimed directly at the cabin temperature sensor mounted above the rear view mirror and totally fools the system's computer..! Once I aimed the center vents horizontally, the AC worked great!!!
 
This might be a big part of your problem..
#892 of 1094
Re: 2001 E430 Bad Catalytic Convertor?? [jodar96] by microrepair
Dec 27, 2006 (5:05 pm)
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Replying to: jodar96 (Dec 05, 2006 6:51 pm)

I had the same rattle on my 2001 E320 a few weeks back and drove to the dealer as soon as I could get there. I was afraid something was about to fall off or otherwise self destruct. As soon as the service manager walked up the car, he smiled and said it was a converter. They checked it out with some fancy gizmo a few days later and said the other converter was alright but the right hand one had gone bad and would not pass inspection unless replaced. They quoted $970 and I screamed in pain.. I too thought that all emissions parts were covered under federal law to 100K miles. So I went to my local mechanic who replaced it for about $830 even though he had to pay the MB price for the converter itself.
 
I had searched the internet for cheaper converters and asked my mechanic about them. His advice is to stay away from them because the 3rd party ones don't have the full load of precious metals needed to last for a reasonable time. He did a cheap one for a customer last year and in 3 months it had gone bad and then the customer had to pay for the OEM part anyway.
 
I had forgotten that the left side converter was replaced by the dealer under warranty at around 65K miles. My 96 had never needed a converter when I finally sold it at 140K miles. Converters are just one more item that MB has chosen to cheapen up...!
#893 of 1094
Re: 2001 E430 Bad Catalytic Convertor?? [microrepair] by jodar96
Dec 28, 2006 (9:15 am)
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Replying to: microrepair (Dec 27, 2006 5:05 pm)

How many miles do you have on your 01 E320? After looking at the catalytic converter assembly..I call it assembly since there are two converters one undeneath and one by firewall, I would only use OEM part. I don't care how much they charge. Aftermarket is good for oil filters, bulbs, but not this item.
 
The service manager said that just because one was bad that does not mean the other one will go bad....Oh well, both of yours went bad. I am glad they replaced mine under warranty.
 
I need to start saving my money for the time when the other one goes bad!! I doubt MB cheapened the part. The part supplier could have had raw material/processing issues.
 
Joe
#894 of 1094
Re: 2001 E430 Bad Catalytic Convertor?? [jodar96] by microrepair
Jan 05, 2007 (2:43 pm)
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Replying to: jodar96 (Dec 28, 2006 9:15 am)

Yes, the converter is an assy of two converters and connecting pipes. My 01 E320 had approx. 84K miles when the second assy had to be replaced.
 
You mention aftermarket bulbs; I just discovered yesterday that NAPA dealers carry a lot of the weird bulbs for MB's. You can save enough for 2 cups of coffee on each bulb..
#895 of 1094
Re: Safety news/ Headgasket [ray_h1] by ccmbduong1
Jan 06, 2007 (1:45 pm)
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Replying to: ray_h1 (Dec 23, 2006 10:18 am)

Thanks Ray h1... I checked and saw no oil floating on surface of coolant, oil level seems unchanged for months, I also checked trans oil dip stick and observed no change... So where is oil leak coming from... Any suggestion? Maybe I should take it to my indy master mechanic to check it out. Thanks
#896 of 1094
Re: 2001 E430 Bad Catalytic Convertor?? [microrepair] by blckislandguy
Jan 07, 2007 (7:43 am)
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Replying to: microrepair (Jan 05, 2007 2:43 pm)

Micro, you've mentioned in the past the good luck you've had with your Boston-area MB dealer. I'd appreciate it if you would let us know who it is. What town is your indy master mechanic in?
#897 of 1094
Re: Safety news/ Headgasket [ccmbduong1] by ray_h1
Jan 08, 2007 (8:54 pm)
Reply

Replying to: ccmbduong1 (Jan 06, 2007 1:45 pm)

)) "So where is oil leak coming from" ((
 
Having a trusted mechanic check it out for you is likely your best bet. My own guess is that you've got a relatively minor gasket leak somewhere. Nuisance stuff - maybe even somewhat involved* to get to and fix, but nothing catastrophic.
 
*Hey, it's a Benz - if there's a more complicated way to do something simple, Daimler-Benz will eventually discover and implement it...
#898 of 1094
Good riddens 2002 E320 by mukhtar
Jan 12, 2007 (6:39 pm)
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I have now sold my 2002 E320. So relieved. It has been nothing but trouble that car. I kept taking it back to the dealer for repairs and replacement of parts. Luckily I hadn't needed to pay a cent as repairs were covered under warranty. But the inconvenience of taking it there so often, on average once or more every 2 months, the receptionist learnt my first name for seeing me too often. I will never ever buy a Mercedes .

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