OK, you are going on a long trip and as always you are prepared for most eventualities.
Besides your AAA/CAA membership, remember you have no spare tire, so this may be a good investment.
What is packed in the trunk for emergencies.

OEM tire pump, jack and lug nut wrench. Dump the tire Goo kit and replace it with something more useful.

Also;

1, Tire plug kit.

2, Multi-function tool.

Roadster owners should carry this or a thin 10mm open end wrench as well as a 5mm hex wrench


3, Crankshaft Position Sensor and the tools required to remove and replace, a ¼” socket ratchet, 5” extension and a E8 Torx socket.
Brand: BOSCH
Bosch Item Number: 0 261 210 170 - Also Replaces 0 261 210 171
Mercedes Benz #: 003 153 27 28 - Also Replaces 003 153 28 28
https://www.germanautosupply.com/sto...sensor-82.html
Cost $45.50 with free shipping to the US, $32 to Canada.




4, Camshaft Position Sensor, and tools as above.
Bosch #0 232 103 037 (same as the OEM part)
Cam Sensor on eBay,$65 with free shipping. Plus $25 to Canada.


5, Flashlight or better yet a lantern.

6, First aid kit.

7, Blanket and matches.

8, Safety triangle and Hi Vis vest. (European requirement)

9. Serpentine Belt

10, Towels and some waterless hand cleaner.

11, Fire extinguisher

What else besides a good credit card?

Let's skip the polish and cleaners as we are after emergency items. When we break down no one is looking for dust on the wheels.