What is the best tool you've found for these cars?
I'm not looking to spend big bucks nor do I need something crazy high end.
I've heard good things about:

BOSCH OBD 1100 Scan Tool with Live Data, OBD II, CAN & ABS

 

has anyone tried this scan took yet?? looks promising... might but it unless someone has a better suggestion??

FOXWELL NT710 Fit for Mercedes-Benz MB Sprinter Diagnostic Tool, Full System OBD2 Scanner Bidirectional Scan Tool, Air Suspension ABS SRS ESP BAS A/C Code Reader, All Service Oil EPB Reset CKP Relearn https://a.co/d/i1kE8Ux

 

I think the best is the micropod II drb III emulator, runs around $140. You need a laptop to run it, but unless you want to spend thousands of dollars on a scanner that can read all the module codes, this is the best bang for the buck. Setup is a little complicated, but one of the members here made a ready to go virtual machine that works great. My laptop has windows 11 and it works just as well as the windows 7 version.
-Jerry

 

I purchased an iCarsoft Professional Multi-System Auto Diagnostic Tool MB V2.0. It works well. The prices vary. I found mine on eBay for $90.00 new.

 

I've got an Innova 5110. It was about $80. It's fine for diagnosing my '07 Aspen (300, Durango) and '99 Jeep XJ, but the '06 Crossfire is a different animal. I am getting a P0500 code NO VEHCLE SPEED SIGNAL (CAB CAN MESSAGE) with ABS+BAS/ESP dummy lites, spoiler deploy on startup and no cruise control. The Innova can't read the codes in the Controller Antilock Brake (CAB). So I'm not sure what sensor is faulty. Is there a reasonably priced code reader that might do this?
I'm willing to spend for a good quality scanner if it will help me repair my Crossfire.

 

Apparently the old gal must have had a momentary lapse of reason and the code was dissappeared on its own.....for now.

Update: I am very suspicious that this code was caused by low tire pressure. All of my tires were low by at least 5 lbs. My TP light is disabled so if the tires are low enough the wheel sensors may not read properly and after refilling, taking time for the code to self clear. This is just my hypothesis at this time. For the record here were my symptoms:
2 P0500 codes - stored and pending. After tire inflation the stored code was eliminated but the pending one remained. Residual P0500 cleared after a driving a few miles after tire inflation..
- other indocators: Check engine, ABS, BAS/ESP
- cruise control non functional
- spoiler wing deploys on startup and wil not retract manualy until in park.

 

I don't have it yet, I'm getting it as a birthday gift, but I hear the CRP123 is a good scanner for our cars. It's about $100.00 on Amazon.
I think you might have to enter it as a 2003 Mercedes-Benz SLK 320 for it to recognize the car.

 

I have a XTOOL D7
scan as a slk320 and works very well. XTOOL JUST DID A UPDATE AND ADDED THE CROSSFIRE. I haven't tried to scan since the update so not sure yet what it will do.

when I purchased my D7 it came with 3 years of free updates. This tool covers thousands of makes and models