Yes, I used the roadside assistance and had them bring a new Mercedes battery, it cost about $130, but it was worth it, because they changed it out, saved a trip to the dealer (or a shop) and did the job right there on the spot, IN THE RAIN.

The convenience of it made it really worth it!! The old battery was kind of old too. It worked for me...

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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...

1995 E 420, 170k "The Red Plum" (sold)

2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp

1967 Mercury Cougar, 49k

2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive (sold)