Avoid like the plague - incompetents and liars
Took my BMW in for service to Group 1 BMW Servicing in Kentish Town in January and asked for a number of items to be dealt with under warranty. One was a vibration, which I advised could have been connected with a fault in the transfer box. When I picked the car up Chris Elderfield advised that they could not detect any vibration. A week later the car ground to a halt in central London smelling of diesel fuel and had to be recovered back to Group 1 Kentish Town. Chris E was (putting it politely) economical with the truth in saying that there had been a 'faulty clip' on the fuel filter that they had replaced during the service. More like a faulty mechanic..... Re-booked the car in a month later, when the vibration was so obvious that my dog could feel it, only to be advised that one mechanic thought it was a worn engine mount whereas another thought it was a worn propshaft coupling (yes, in a car that was less than 3 years old with 25,000 miles on the clock). They eventually agreed with my diagnosis that it was the transfer box and said, after a lot of debate with BMW warranty people, that they would replace the oil in the transfer box. They also admitted that if I had been paying for the work myself they would have just replaced the whole box! They kept the car in for a week and when I came to pick it up as agreed Chris E admitted that they had not actually done the work! So had to go in again.... How their average review score is 4 stars when there are clearly many 1 star reviews defeats me. This outfit is staffed by incompetent mechanics, is not utilising their resources properly (why aren't the mechanics doing overtime to work off the backlog of work?) and their 'Customer Service Manager' Mr Elderfield dispenses broken promises and lies. As others have said, this would be disappointing in any garage, but is just unacceptable in an outfit that services premium brands like BMW. The problem is that in my experience most London factory-approved BMW service outlets are equally incompetent and hold one to ransom during the warranty period. Thank goodness my warranty has now expired and I can take it to a proper garage that knows what it is doing.