Hi guys,

For u guys who owns AMGs (E55), I would really like to hear ur opinion on this.

I experienced a delate in power output while suddenly accelerate up a long slope(was doing about 50~60km/hr,rev around 1700rpm ) but once the rev reach about 3500 rpm I just hold the gas pedal and it seems like the car was trying to figure what I wanted and the whole transition was abrupt...


Thanks,
Et

ET, a couple of comments:

1. Did ESP kick in? That will explain an abrupt transition in power.
2. If I floor the car not letting go of my foot, I never experience any delay in power.
3. However, if I accelerate hard then let go, and reapply the gas half heartedly, sometimes I can fool the transmission into a quicker than necessary shift.
4. Overall, I find the transmission very intelligent.
5. Can you duplicate your scenario?

I don't know if its the same problem that I had but it sure sounds like it.
I'll reiterate the problem that I had and if you think its the same then take it to the dealer.
I had a problem with both CLK430's in that sometimes there wasn't any real power even when pushing the accelerator down quite a bit. The car would after a couple seconds, all of a sudden lurch into a lower gear (maybe two gears down).
I haven't had it with the E55. So if this is the same problem, take it to the dealer they should be aware of it and have a fix for you.

Hope this helps.

Thanks guys(Eric & Jesse)

I can duplicate the situation. And it is not like Jesse's situation. I guess what I was not happy about is that the power delivery is not flexible. If I floor it then it is great, it will just punch out power. But if I went for a quick dip in throttle, sometimes it hestitated especially when climbing a slope or passing uneven surface. I feel computer is monitoring every move I make and interprets before action and I don't like it(Althought I am greatful). I have driven 99 model and it was the same.

This is actually my 2nd car and I can't help it by comparing it with my 1st which is an Infiniti J30t. I still drive it a lot because it is flexible therefore enjoyable. The rear wheels will keep spining as long as I don't let go and in driving it responds to any little dip without delate. AMG respond the dip too as long as it thinkd my decision is ok to obey...

Anyways, I complained about this to my service manager Jimmy and the great guy offers to take a look so I will let u guys know what happen.

Best regards,
ET

Whoops, I think I made a mistake. AMG spin wheels too. My main concern is it's response to my quick dip.

I've never experienced this problem, but my wife has a similar problem in 'S'port mode-she has to drive the car in 'W'inter mode. If she hits a bump and her foot come off the gas for a second, then hits the gas again, ESP kicks in with abrupt power loss. Seems that 'S' will give you a sharper shift and more frequent gear changes (more driver input responsive) while 'W' is a softer shift (more computer control). The computer tries to smooth out your driving to maintain control. Try the same situation with ESP off and see what happens....
Gary

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00 AMG E55
96 DCM Impala SS
94 ZR-1
81 Corvette Cpe

Don't know about the ESP off. I always have it off unless its raining!

Hi guys, thanks for all the inputs. My problem has been solved by the dedication of Mercedes services staffs (big thanks to Jimmy & Ed). Althought they didn't find anything wrong by computer diagnosis, they didn't stop there. we went test drive with a laptop hooked on to find out what I meant. It is amazing that a few codes can change a car's behaviour to suite the driver.At the end we both had smile on our face. And I enjoy the car very much now. Luckily I encountered a black M5 on my way home and we enjoied a friendly "dogfight". Afterward I parked next to the guy and gave him a thumb up and he responded with a salute. It was quite fun.

Best regards,
Et