SL55/63/65/R230 AMG: Mercedes Quality (or lack thereof)
After about a week of owning it or so, I realize my brothers stock 6.0 GTO shouldn't be kicking my ***, and took it to the dealer. Along with a faulty IC pump, and a cracked supercharger, it also had an oil leak-- among other things, that needed to be fixed. At first, I brushed it off as just bad luck, fixed it under warranty and moved along... perhaps because it was an AMG, I showed leniency.
Next, I purchased my SL55. Dropped it on some wheels (which were built just as well as the SL55) and proceeded to floss around town. Short lived that was, the problems of this car can not be understated: first came the sagging to side, which lead me to spend over 4K of my own money on this problem alone doing "rodeos" and crap that never worked (the car was in fact sold with the suspension never being fixed). The brakes downright failed at one point, the top got stuck in the trunk another time, and the rear license plate light failed-- twice. Among other things, the "pulsating" seats (which by the way, are epically useless) failed, the speedometer cluster was starting to fall off it's hinges, and well, what's an AMG if the IC pump works eh? The car was a money pit.
Then came the day I got rid of the E55 and purchased the SL600 alongside the SL55. Surely, I thought, my bad luck streak will end with the 600. I'll use the SL55 as my daily, and the 600 as my weekend cruiser... yeah, that way neither car gets excessive wear and tear. Yeah...yeah... idiot.

Where to start... faulty IC pump (*yawn*, expected), brakes also failed at one point, the rear left license plate light failed, the top also got stuck (though this was while it was up), it pulled to the right, it refuses to catch traction at any speed these days (courtesy of the ABC malfunctioning), after parking it "relaxes" and eventually will look slammed, if it doesn't feel like it, it wont start and if I want to go fast, it's on it's own agenda-- ie: I floor it and 4-5 seconds later-- no exaggeration-- it finally decides to go froggy. Too continue this lovely review, at times the gear will not cooperate it's way out of "P", something or other was replaced a la fuel pump/filter, and just for kicks at times, the "SRS" light turns itself on and off like I'm at a disco. I'm convinced this car is PMS'ing... 24/7.
So I'm at the crossroads. Sooner or later, perhaps within the following year, I will be getting a new car and I truly cringe at the thought of getting another Mercedes. Reflecting on the situation now, I can say the only reason any of these cars got a pass is the same reason they never should have to begin with: because they were top-end cars on the MB food-chain. Logic clouded by their straight-line potential and the novelty of the sheer thrust from virtually any speed, I turned a blind eye... and financially, it bite me in the ***.
To be fair, the times any of the trio worked properly, it was (and still is) fun. I love the convertible glass roof on the 600, I loved the E55 for the four door monster it was, and the SL55 was unbelievably enjoyable-- in some ways, more so then the 600. I remember racing the owner of European Touch (located in HB) with his Murciealgo in my SL55, up the winding road leading to the Pelican Hill Resort in Newport Beach-- an absolute blast putting that Murcielago in my rear view; it's events such as these that made me overlook the cars problems. Honestly, nothing makes me happier then taking out the 600 on weekends after a long week at work/school, just drop the top and hop right into pimp mode without a care in the world... that is excluding the constant fear that at any given moment, it just might quite literally fall apart.
What gives? You figure paying 6 figures for top-end Mercedes vehicles would mean it would actually be built properly.
For comparison, my dad has had his fair share of Mercedes-Benz vehicles, and he has had virtually no major problems. His E55 (he had the first of the first in late 2002/2003) worked beautifully without a problem in the world, either of his SL600s worked flawlessly and his CL65 is still kicking *** with just regular scheduled maintenances being performed.
So, what is this, like a hit or miss with Mercedes? Do you have to "get lucky" to enjoy one? Reading around the forums, I've noticed a lot of Benzes share similar problems and this thread prompted me to start my review simply because I've had enough. With the amount I've spent on repairs between the 3, I could have easily purchased me another B7 A4; a properly built automobile.
So for my next car, I don't know what it will be-- but I know what I'm moving away from: Mercedes. Maybe a Murcielago or GT3... Lamborghini is owned by Audi, so I trust them and Porsche... well, I've yet to hear any horror stories.
Please feel free to comment or post a testament to the quality of your Mercedes vehicle(s). I need more then straight-line speed to keep me coming back... any positive experiences? Negative? What keeps you coming back, or what made you get one to begin with?
Discuss.
2004 E55 AMG (roughly 18k miles), 2003 SL55 (roughly 30k miles), 2004 SL600 (roughly 14k miles). I started with the E55 in 2006, if I recall correctly same year got both SLs. All were one owner cars, passed 100-point inspections, I took it upon myself to pull up service histories, everything was on point.
Please feel free to comment or post a testament to the quality of your Mercedes vehicle(s). I need more then straight-line speed to keep me coming back... any positive experiences? Negative? What keeps you coming back, or what made you get one to begin with?
Discuss.
BTW, Porsche owns Audi/VW also...along with Bentley and Bugatti. Porsche owns just over 50% of the VAG.
Last edited by FormulaZR; Sep 11, 2009 at 06:52 PM.
Trending Topics
The Best of Mercedes & AMG
I owned a Benz once and also swore them off.....until Mercedes improves them. I still remember the feeling, the ride, just unlike any other car. I used to call it butter. Once that warranty expired and I was pumping out $400-1000 every other month, the love affair wore off.
One day I'll come back. After Mercedes gets off their duffs.
It's going to be hard going elsewhere. I like the reliability of my Lexus cars but wouldn't recommend them to people who want drivers' cars....unless you want to mod the suspensions extensively. The ISF is the best performance car from Lexus but it is on the small side.
BMW also has issues so that's not the way to go. Porsche seems to be 50-50. The Jaguar XK is interesting but I don't know. Lot's of mechanics have advised me to stay away from them. Audi seems to be doing a lot better than in the past but there are still a ways to go. I would still recommend the R8 though. It's just a good driver with sexy looks.
For my next car I'm going down-market. I'm looking at the Infiniti G37. It has decent power and handling that can easily be improved. It has good looks that can easilty be improved. It has a price that is very affordable, maybe low enough to get 2 of them. But it is very reliable. Reliable and sporty at a low price. Not bad...but it ain't no Benz....or Lexus for that matter. Buying cars is tough.
What about a Corvette?
yes mercedes have more issue and expensive to fix considering all the gadget/electrical on the car compare to other makes.
the bottome line is when someone buy a mercedes should expect it to have issue every now and then.. because it's a high-maint car..
The suspension issue on SL55 - known problem on certain cars at that mileage level and higher.
The IC Pump failure - known problem on all Supercharged engines.
Mercedes is usually on the cutting edge of technology, so its going to have quirks and no VERY long term testing.
The last owners may have driven them too hard, may not have driven them enough, may have been late with some maintenance or it could simply be the case of many years age + high mileage.
It comes with that territory. Just think of the cost of repairs, a small cost in getting the big discount from original MSRP of when it was new.
My SL63 had problems with the transmission shifting, I ended up losing $31,000+ on that car to get rid of it and had to fight Mercedes with a lawyer to do it.
Last edited by Fantasm; Sep 11, 2009 at 11:42 PM.
The suspension issue on SL55 - known problem on certain cars at that mileage level and higher.
The IC Pump failure - known problem on all Supercharged engines.
Mercedes is usually on the cutting edge of technology, so its going to have quirks and no VERY long term testing.
The last owners may have driven them too hard, may not have driven them enough, may have been late with some maintenance or it could simply be the case of many years age + high mileage.
It comes with that territory. Just think of the cost of repairs, a small cost in getting the big discount from original MSRP of when it was new.
My SL63 had problems with the transmission shifting, I ended up losing $31,000+ on that car to get rid of it and had to fight Mercedes with a lawyer to do it.
Also, I highly doubt a E55 @ 18K is considered "high-mileage". Or the 600 for that matter. Simply, I just think if you pay this much for a vehicle it should be able to hold out I don't know at least past 20K miles without ****ting a brick-- or am I asking too much? My A4 cost a third of the 600, yet never had any problems.
New cutting edge technology? I don't care what I have on the car if it can't go a week without breaking or needing replacement. If you can't get it right, don't release the product, it's quite simple.
Audis build quality really has got me looking at the Murcielago. I highly doubt the Lamborghini is going to have useless busted pulsating seats or a top that wont work.
EDIT: And to seemingly add insult to injury, they can't hold value worth a damn. You lost 31K on a brand new car (assuming your "delivery miles" weren't chalked up as "high-mileage") that had problems shifting. So, you charge a premium, your product is a failure, new buyers take a huge hit, and the cycle continues?
Last edited by Akademiks; Sep 12, 2009 at 03:11 AM.
yes mercedes have more issue and expensive to fix considering all the gadget/electrical on the car compare to other makes.
the bottome line is when someone buy a mercedes should expect it to have issue every now and then.. because it's a high-maint car..
Make no mistake, Mercedes is in business because they have made a reputable name for themselves in the past-- a name which resonates reliability, luxury and performance... all in a nice bundle. If Mercedes came out as a brand new car company today, they'd fail.
I owned a Benz once and also swore them off.....until Mercedes improves them. I still remember the feeling, the ride, just unlike any other car. I used to call it butter. Once that warranty expired and I was pumping out $400-1000 every other month, the love affair wore off.
One day I'll come back. After Mercedes gets off their duffs.
It's going to be hard going elsewhere. I like the reliability of my Lexus cars but wouldn't recommend them to people who want drivers' cars....unless you want to mod the suspensions extensively. The ISF is the best performance car from Lexus but it is on the small side.
BMW also has issues so that's not the way to go. Porsche seems to be 50-50. The Jaguar XK is interesting but I don't know. Lot's of mechanics have advised me to stay away from them. Audi seems to be doing a lot better than in the past but there are still a ways to go. I would still recommend the R8 though. It's just a good driver with sexy looks.
For my next car I'm going down-market. I'm looking at the Infiniti G37. It has decent power and handling that can easily be improved. It has good looks that can easilty be improved. It has a price that is very affordable, maybe low enough to get 2 of them. But it is very reliable. Reliable and sporty at a low price. Not bad...but it ain't no Benz....or Lexus for that matter. Buying cars is tough.
What about a Corvette?
I'm really not into American muscle, or Imports. It's why my next car will be either a P or L-car.

You think all the A4's were perfect with no problems?
This is a niche forum, and when someone posts its most likely about a problem -- thus a lot of the posts here will show problems. People don't post random threads saying how happy they are their car has never had a problem.
2004 E55 AMG (roughly 18k miles), 2003 SL55 (roughly 30k miles), 2004 SL600 (roughly 14k miles). I started with the E55 in 2006, if I recall correctly same year got both SLs. All were one owner cars, passed 100-point inspections, I took it upon myself to pull up service histories, everything was on point.
Make no mistake, Mercedes is in business because they have made a reputable name for themselves in the past-- a name which resonates reliability, luxury and performance... all in a nice bundle. If Mercedes came out as a brand new car company today, they'd fail.
I have not many issues at all with my cars so far but what Akademics and many others on this forum and beyond are going through with MB's under 100K miles should not be happening. The customer service, and attitudes of several dealers is horrible.
Some really off the wall stuff:
- Engines blowing out?
- Airmatic pump failing under 30K? (Happened to my R500)
- Failing of the SBC system, which from varied responses you can't hardly stop. That's a death trap and there is no excuse for that period. MB should have never put a system out that upon failure, your safety and others is out the window.
- 120K spent, and about a month in your car stops cranking. Come back 10 minutes later it does. WTF? Wiring harness, etc.
I love my MB experience, my E320 @ 198K has not had any major failures at all. The R and CLS are still under warranty, no major issues thus far, but my CLS with the SBC system does make me wonder at times.
Overall, MB builds quality cars, but that 99-03(04?) period put a lot of dogs out in the market and has tarnished MB's name. Sure other car manufacturers have issues, but for the price paid for MB's you expect much better performance and reliability. That is what MB stands on correct? That is the reason we buy MB right? They have suffered greatly, and have had to make major changes. However, once a bad rep is out, it is very hard to get that stink off. Real hard, it is what it is.
Perception. It rules.
You think all the A4's were perfect with no problems?
This is a niche forum, and when someone posts its most likely about a problem -- thus a lot of the posts here will show problems. People don't post random threads saying how happy they are their car has never had a problem.
That said, I do see your point.
I have not many issues at all with my cars so far but what Akademics and many others on this forum and beyond are going through with MB's under 100K miles should not be happening. The customer service, and attitudes of several dealers is horrible.
Some really off the wall stuff:
- Engines blowing out?
- Airmatic pump failing under 30K? (Happened to my R500)
- Failing of the SBC system, which from varied responses you can't hardly stop. That's a death trap and there is no excuse for that period. MB should have never put a system out that upon failure, your safety and others is out the window.
- 120K spent, and about a month in your car stops cranking. Come back 10 minutes later it does. WTF? Wiring harness, etc.
I love my MB experience, my E320 @ 198K has not had any major failures at all. The R and CLS are still under warranty, no major issues thus far, but my CLS with the SBC system does make me wonder at times.
Overall, MB builds quality cars, but that 99-03(04?) period put a lot of dogs out in the market and has tarnished MB's name. Sure other car manufacturers have issues, but for the price paid for MB's you expect much better performance and reliability. That is what MB stands on correct? That is the reason we buy MB right? They have suffered greatly, and have had to make major changes. However, once a bad rep is out, it is very hard to get that stink off. Real hard, it is what it is.
Perception. It rules.

Not true. Actually Porsche tried to buy VW/Audi but couldn't make the interest payments so VW ended up owning Porsche. First order of biz, give Wendelin Wiedeking and his super large ego the boot! FAIL!


