The average cost of a mobile mechanic is determined by the time required to complete a repair, with "per-hour" rates ranging from £30 to over £100.
Mobile mechanics can perform most repairs, including Cambelt replacements, brake repairs, and general maintenance. Some offer more robust services, such as clutch repair.
The brief answer is "yes." A repair shop may charge you for diagnosing a car problem. Whether or not your warranty covers the diagnostic fees will depend on the terms of the agreement.
MOT refers to the Ministry of Transport, the government agency that established the test in 1960 to assess motor vehicle roadworthiness, safety, and exhaust emissions.