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Mercedes-Benz E-Class Maintenance and Repair

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#878 of 1094 Re: 2001 E430 Bad Catalytic Convertor?? [ray_h1] by bigrobnh Dec 06, 2006 (10:29 am)
Replying to: ray_h1 (Dec 06, 2006 10:22 am) The benz dealer I go to uses Mobil-1 synthetic. Is that American or one of these pricey Europeans?   BigRob. Replies to this message: ray_h1 (Dec 09, 2006 9:28 am)
#879 of 1094 Re: 2001 E430 Bad Catalytic Convertor?? [ray_h1] by jodar96 Dec 07, 2006 (7:01 am)
Replying to: ray_h1 (Dec 06, 2006 10:22 am) Guys, thanks for all of your reponses. The car is at the dealer now. I will be very ticked off if they tell me I need to pay for all of it. I don't mind paying some of it. As I said, the last time I had a catalytic converter problem, it was with my 1977 Buick. With 14 cars/trucks since 1978, this is the second car with this issue. The problem started with a HUM when I was accelerating from 50-60mph in the left lane. Now it apears that increased exhaust gas flow was being slowed down in the converter, causing the hum.   Your explaination with European spec oil does not explain why the car has issue with Mobil 1. Are you saying anyone using this oil will have catalytic convertor problem? Since new,when it was serviced at the dealer they used Mobile 1, I have changed the oil myself with Mobil 1 and have kept my receipt. The engine also has a cold start up tick tick noise. Is it the lifter noise? What is your thought on that. When the engine warms up, it stops.     What about the theory that Mercedes could have had a convertor supplier problem? material batch problem from tier 2 suppliers? or processesing problem at the supplier?   I am still not sure giving up my truely flawless 1996 Toyota Camry XLE V6 with 93K miles for this MB was a good idea. This MB is a great highway cruiser. With some 500 Ibs less weight, the Camry felt slightly light at 75-80, but ran flawlessly. The only dealer maiantenance was a $150 timing belt. In 10 years, that was IT. It also used any on-sale 5W-30 motor oil, and never complained.   Joe
#880 of 1094 heated seats not so hot by revras Dec 09, 2006 (9:08 am)
I just took delivery on a 2007 e350 and have noticed that the heated seats do not really heat much at all, on the highest heat setting it is barely warm. I previously had a 2005 e class which would roast you if you so desired. Has anyone else experienced this situation? Could this be a bad fuse etc or has their been a change in the whole mechanism? Replies to this message: greasykid1 (Dec 09, 2006 11:23 am)
#881 of 1094 Re: 2001 E430 Bad Catalytic Convertor?? [bigrobnh] by ray_h1 Dec 09, 2006 (9:28 am)
Replying to: bigrobnh (Dec 06, 2006 10:29 am) Definitely American. According to Mobil's website, "Mobil 1 0W-40" is certified to meet the MB 229.5 certification. The only American lube I know of for certain that does meet Mercedes-Benz revised 229.51 spec is "Amsoil Synthetic 5W-40 European Engine Oil". There may be others including the Mobil 1 if the website hasn't been updated to reflect a recent formulation change. I do not know what the ".51" suffix brings to the table or whether it's necessary for your model year engine - check your owner's manual on that.   (I am NOT an Amsoil distributor - just an obsessive-compulsive, self-servicing, non-Benz, car owner.)
#882 of 1094 Re: heated seats not so hot [revras] by greasykid1 Dec 09, 2006 (11:23 am)
Replying to: revras (Dec 09, 2006 9:08 am) Don't know about 2007 E but my 2005 has toasters in the seats
#883 of 1094 2001 E430 with bad catalytic converter by jodar96 Dec 10, 2006 (7:49 pm)
The dealer determined that the left side underbody convertor was bad and they replaced it under their 8 year warranty. There are two catalytic conevertors on each side. After the fix, I took the car for a long drive; the rattle and the HUM in acceleration from 45-50mph are both gone.   My next issue with the dealer will be the tick tick sound from a cold start that sounds like a lifter noise. Replies to this message: hawkeyes2 (Dec 18, 2006 3:28 pm) ray_h1 (Dec 19, 2006 11:33 am) jodar96 (Dec 20, 2006 6:40 pm) and 1 more...
#884 of 1094 99 E320 jerks by dirtyharyus Dec 18, 2006 (10:46 am)
Hi, My 99 E320 kind of jerks forward or seems to not have enough gas at lower gear when I start driving in the morning and gear shift seems not correct. I do warm the car up for about 3-4mins before driving. After I drive for sometime when I slow down or stop at traffic light, I dont see this problem. What could be causing this? Bad Oxygen senor? Or is it the transmission going bad and not shifting correctly?   I am not too worried about the other problems but worried about transi goign bad. What are the typical symptoms of transmission going bad?   Thanks much in advance.
#885 of 1094 Re: tick tick sound at cold start.... by hawkeyes2 Dec 18, 2006 (3:28 pm)
Replying to: jodar96 (Dec 10, 2006 7:49 pm) What is that all about? I have looked at or test driven five of them, and they all tick tick when they start up for a moment. Sounds like a lifter issue, I agree. One of them started up and made that noise, very noticeably, and the guy said it would go away when warmed up. It didn't, and he told me he would have it looked at inside and call me. Then called me to tell me it was off to auction as it had a head gasket problem or leak...and they thought moisture got into the engine (water.) Why do they all do this tick thing upon start up? Replies to this message: ray_h1 (Dec 19, 2006 11:33 am) jodar96 (Dec 20, 2006 6:40 pm) 3screwsloose (Feb 03, 2007 3:36 pm)
#886 of 1094 Re: tick tick sound at cold start.... [hawkeyes2] by ray_h1 Dec 19, 2006 (11:33 am)
Replying to: hawkeyes2 (Dec 18, 2006 3:28 pm) )) "Why do they all do this tick thing upon start up?" ((   Oil drainback from the top-end to the sump overnight. With overhead camshaft engine designs, upon cold start, there's a brief delay circulating c-o-l-d motor oil back up to re-pressurize the top end mechanicals. Tick-tick-tick... As long as the noise clears within a minute or so, it's not considered problematic. (Or you could always drive a Hyundai Accent with mechanical lifters that require periodic adjustment maintenance... ) Replies to this message: jodar96 (Dec 20, 2006 6:40 pm) 3screwsloose (Feb 03, 2007 3:36 pm)
#887 of 1094 Re: tick tick sound at cold start.... [ray_h1] by jodar96 Dec 20, 2006 (6:40 pm)
Replying to: ray_h1 (Dec 19, 2006 11:33 am) When I dropped off my 2001 E430 with 84K to have them replace the catalytic converter, I told them about the cold engine noise what I describe as lifter noise. The service manager told me that a Mercedes with 84K miles does not develop a lifter noise. He said it was carbon build up around the valve seals, and they run some GM-made cleaner through one of the vacuum lines, and that fix always quiets the noise.   The car does not make that noise anymore. They never mentioned what I said in work order write up, and never said what they did. I just now they did something to the engine. I would have heard the noise when I start the car in the garage if they did nothing.. I still think this MB's V-8 does not come close to my 96 Camry's V-6's smoothness. Some of you may think I am crazy for saying this, but it is true.   Joe Replies to this message: 3screwsloose (Feb 03, 2007 3:36 pm)

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