SL/R230: What should I expect to pay for a 2003-2006 Sl55 AMG ???
I almost bought a 2014 BMW M6 convertible about 4 weeks ago until I discovered how many engine related issues they have. A good friend of mine ( owner of three 2003/2004 S class AMG, one white, one black, one silver- I think he is having some issues
) pointed me to the 2003/06 SL55 direction ( i need an convertible) saying that they have an bulletproof engine. However, after researching a little I realized that they are all over the map, price wise. I need some advice on how to price these cars, if possible. I’m looking at an 2004 SL55 with 78k miles and $18,000. (Silver ext. with dark grey/black int.) The owner will not go any lower in price.This car looks/feels/drive like brand new from my point of view ( already test drove it). Also there is a 2005 SL55 , White ext. with red int. , 26k miles and the dealership wants 27,600 + taxes. I’m not sure how much lower are they willing to go. I didn’t see it in person but from the pictures looks great. Are any off these two car good deals??? I’ve seen 2003/2004’s Sl55’s with 60k miles and close to $30k or well over 100K miles and priced $15k-$19k. Since this car is smaller and older than an M6 i also reduced the budget. Can I expect to get a 2003-2006, with low miles in good/great condition for under $25k ??? Or should i revise my expectations
Also, I’m aware of their brake system issues an shifter issues Anything else should I be aware of ? Any advice is greatly appreciated. Thank you.
As a point of reference, there was a local one last month: 2007 SL55, ~50K miles, listed for $26K. If I had a 3rd garage bay, I would have bought it. Sold within 2 weeks.
The M113K has a deeper well of torque down low. The M156, on the other hand, has a more enjoyable top end of the power band. Both are strong in the mid-range.
You'll encounter a lot of noise about the head bolts on the M156, a good bit of which comes from people just regurgitating things they've read and who have no actual experience with the platform. Analogous to the IMS Bearing matter for certain Porsche models, the short of it is that for ~$3K you can resolve the factory defect and never worry about it again.
End of the day, though, drive both and determine which you prefer.


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Wow... that 2007 definitely a steal ...I wish I knew....
So you are saying that the 2007 engine is the same as 2003 version? For some reason my friend told me to avoid 2007 and up because the have a different engine. I would love a 2007.
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The M113K has a deeper well of torque down low. The M156, on the other hand, has a more enjoyable top end of the power band. Both are strong in the mid-range.
You'll encounter a lot of noise about the head bolts on the M156, a good bit of which comes from people just regurgitating things they've read and who have no actual experience with the platform. Analogous to the IMS Bearing matter for certain Porsche models, the short of it is that for ~$3K you can resolve the factory defect and never worry about it again.
End of the day, though, drive both and determine which you prefer.
...

The M113K has a deeper well of torque down low. The M156, on the other hand, has a more enjoyable top end of the power band. Both are strong in the mid-range.
You'll encounter a lot of noise about the head bolts on the M156, a good bit of which comes from people just regurgitating things they've read and who have no actual experience with the platform. Analogous to the IMS Bearing matter for certain Porsche models, the short of it is that for ~$3K you can resolve the factory defect and never worry about it again.
End of the day, though, drive both and determine which you prefer.
Drive both is the best advice I can offer. I own two AMGs with an M156 and the Speedshift transmission, so I'm obviously biased.




Agreed that the tranny in the 55 is horrible. The 7 speed in the M156 equipped SL63 is so much better.
Last edited by BlownV8; Dec 16, 2020 at 04:14 PM.










