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Uncertain if you are able to receive messages. Simply reach out to him via his firm.

It is indeed feasible. Could you arrange for someone to assess the battery?

An ineffective batter may be accountable for erratic malfunctions, such as those you delineate.

If the battery is original, it is likely time for replacement.

Although it did not originally leave the factory adorned with an AMG insignia on the boot lid, now that it is there, unless it is misaligned or bothersome, it is best to leave it undisturbed. It will include AMG emblems on the wheels, floor mats, and likely in further locations, so an extra one woul...

Is this beneficial?

From the Mercedes website.


Authorised Mercedes-Benz dealers use authentic Mercedes-Benz engine oil, along with alternative brands that comply with Mercedes-Benz specifications:


...and at U.S. authorised dealerships, it is mostly Mobil 1.

If that is your assertion. I had my E63 serviced at both MB Loughton and MB Poole, and both used MB branded oil, as shown on the bills. Petronas was previously used, and I accept your assertion that other Mercedes dealers employ brands such as Shell Helix and Mobil 1 in addition to MB/Petronas. MB b...