Why Book Your Mercedes Service With Us?
Mercedes-Benz trained team, including two Master Technicians
Complete suite of Mercedes-benz diagnostic equipment and tools
Genuine Mercedes-benz parts
Includes SERVICE STYLE VALET
Mercedes-benz COURTESY VEHICLE while your car is with us
Comfortable reception area with complimentary refreshments and wi-fi
Mercedes Master Technicians
At John Haynes our service department technicians have decades of Mercedes-Benz servicing experience. Our two Mercedes-Benz Master Technicians have evolved through the models from the past to the present completing all aspects of the mark.
Their experience in the field of Modern Mercedes is essentially fault finding, however Master Technicians are not the only trained staff you need to work on Mercedes-Benz. Our service and repair technicians are also Mercedes-Benz trained in their own right and certificated by Mercedes-Benz UK.

mercedes Workshop
We have a state of the art servicing workshop facility, with full Mercedes-Benz diagnostic and other specialist equipment to ensure your car receives precisely the care and attention it needs. At every stage, from making your booking to collecting your keys, our friendly, enthusiastic Service Reception team is on hand to keep you up-to-date, and offer advice and assistance.
Mercedes Servicing
Regular servicing is important for a vehicles history, resale value and of course long term reliability.
A regular service should not only maintain your vehicle to its peak performance but also provide you with a report of condition. It should give advice on any repairs which may be needed so these can be programmed in for future attention. Customers travel from Brighton & Hove, Horsham and all over Sussex to get their Mercedes serviced with John Haynes.
With modern day servicing, computer diagnosis plays a major part in evaluating faults that can be recorded in a vehicles memory bank. So for this it is important that servicing is carried out by qualified technicians with Mercedes Benz service experience and genuine Mercedes-Benz equipment.
Mercedes Benz cars have various types of servicing schedules with different service items due each year. The main service types are Mercedes A Service or Mercedes B Service but the mileage, age and service history of your vehicle will dictate what service items are due for renewal.
Whichever level of service your vehicle requires we are here to help so please contact us to book your Mercedes-Benz service.
Posted on Google navid alizadeh Another Job was done with John Haynes on my Sl320 (1998) a gearbox oil service, also they observed a fuel leak and resolved incredibly fast and they are the most knowledgeable Mercedes specialist I know so far! Thanks to David and Chris. Very grateful!Posted on Google Aimee Lister Great helpful servicePosted on Google John McMillan Great service, reliable, they really know their cars and fair with prices.Posted on Google Jonathan K After finding John Haynes I simply would not take my car anywhere else now. Their knowledge and ability to diagnose and fix issues has been A1. Each time I get my car back it feels like a brand new car. Both Chris and David are super helpful in explaining the work needed and providing accurate quotes and estimates which come in on budget. Professional, honest and friendly team who offer a great customer service experience. Having taken my car in again recently due to a knocking from the suspension the issues were correctly diagnosed and fixed and the car drives like new again.Posted on Google Stephen Exceptional servicePosted on Google Karen Adsett David was very helpful and they looked after our pet ambulance, very fast in fixing the problem with our 2018 c class estate. Definitely worth 5 stars, wish i could give 6 starsPosted on Google Simon Wright Their customers service is excellentPosted on Google Victor KJR I bought an R129 SL320 in 2001 - the car had been serviced by John Haynes for many years, so I decided to start using them for reasons of continuity (they’re around an hour from home). I sold that car in 2023, missed my R129 so ended up buying another one! Overall, across the 2 cars, I have used John Haynes on several occasions for servicing and repair work - each time, I have found their work to be of top quality - and a special mention for David Sandell, the Service Manager (a non workshop role as the interface between the customer and the technicians). David is very knowledgeable, extremely helpful and friendly. Very highly recommended. 5*Google rating score: 4.8 of 5, based on 156 reviews
Current Stock For Sale
Click here to view the classic and modern Mercedes-Benz, then make an enquiry and discuss a part-exchange.
MOT
We can arrange a Mercedes-Benz MOT, whatever its age and model – click here to find out more.
Why buy from us?
We’re true Mercedes-Benz enthusiasts, with experience and expertise acquired over more than 50 years with the marque.