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John Haynes Mercedes John Haynes Mercedes is a trusted independent garage in Worthing, specialising in modern Mercedes-Benz models (post-1995) with over 40 years of experience. While renowned for classic restorations, we focus on servicing and repairing contemporary models with expert care and precision. From diagnostics to repairs, our skilled team ensures exceptional workmanship and a genuine passion for the brand. Call or visit our website to see how we can support your modern Mercedes-Benz.
Business details
  • Licensed
  • Insured
Highlights and features
  • Over 40 years of Mercedes-Benz service expertise
  • Family-run business with trusted, personal service
  • Servicing for modern and classic Mercedes models
  • Expert diagnostics and repairs for all Mercedes-Benz
  • Large parts inventory outside main dealer network
  • Comprehensive vehicle health checks year-round
Payment methods
  • Cash
  • Debit cards
  • Credit cards
Services
Diagnostics and Repairs At John Haynes Mercedes, we specialise in accurate diagnostics and expert repairs for your Mercedes-Benz. Unlike non-franchise garages or large servicing chains using generic equipment, we use genuine Mercedes-Benz diagnostic tools, ensuring precise fault detection with confidence. Whether its a minor issue or a major repair, our fully Mercedes-Benz trained technicians carry out all work in our dedicated six-bay workshop. With one of the largest stocks of genuine parts for modern Mercedes-Benz models outside the UK dealer network, we make it easy to keep your car 100% Mercedes.
Vehicle Health Check Our comprehensive Vehicle Health Check ensures your Mercedes-Benz is road-ready for both winter and summer conditions. We carry out detailed inspections of key systems, including brakes, suspension, electrics, tyres, battery, and fluid levels. This preventative service helps maintain comfort, reliability and performance. Whether preparing for holidays or seasonal changes, we deliver expert care tailored to your vehicles needs.
Mercedes Servicing At John Haynes, we provide professional Mercedes servicing that supports your vehicles long-term performance and value. Our qualified technicians use genuine Mercedes-Benz equipment and are trained in the latest diagnostic technology. Each service includes a detailed report outlining your vehicles condition and any repairs that may be required. We tailor servicing to your cars age, mileage, and service history.
Reviews (67)
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Ian Johnson
May 04, 2025
Great place with helpful staff.
Bradley
May 02, 2025
One of the best garages i have ever dealt with. My car had some issues i wanted diagnosing, I dropped the car Wednesday and they had a look Thursday as the issue only occurs on a cold start. They managed to find 2 faults and advised about another potential one. I picked the car up Thursday and was shocked when they said free of charge! Very honest people with an extensive amount of knowledge and fair prices. Once the bank holiday is over I will look to get my car booked in and sort the problems.
Manek Dubash
Apr 24, 2025
Professional, friendly and thorough: JH looks after my car and helps me navigate the path towards making perfect.
Nathan Baker
Apr 03, 2025
So I have just recently found John Hayes and used them on the car. I must say there helpfulness and expertise is second to none.
Quick to get the car in and sorted out as well as no pressure for upselling anything just fax about possible problems moving forward.
David there and the team were outstanding.
I could not recommend them enough.
Dont use at your own peril.
10/10
Amin Islam
Apr 03, 2025
This is by far the best mercedes specialist i have come across The care and service they did was absolutely top class. Keep up the great work
Daz The Sailor
Mar 23, 2025
Engine light issue in my A200 great service from Chris on service desk and got back a clean car to . Honest family type business wil def use again
Niall Bradbury
Feb 08, 2025
Excellent customer services and they did an excellent job on my Mercedes ML transfer box and a week later I was delivering this lovely SL to them
Rob Mockett
Jan 30, 2025
The best place to take your Mercedes full stop
Zbigniew Kosik
Nov 08, 2024
Professional, fast diagnosis,fast repair .
Definitely recommend.
Ashley Fearon
Nov 05, 2024
John Haynes have been looking after my S Class for the past 5 years. Apart from regular servicing, theyve also attended to a range of non routine conundrums on the car some of which were particularly unusual.
Without hesitation, I would thoroughly recommend them. Compared to many years of impersonal, conveyor belt and often rude experiences from main dealerships, John Haynes is as far removed from this as you can get.
The customer service from David is polite and professional whilst projected costs and timescales are always outlined up front. In the event of a short wait at reception, theres a modest but superb collection of older Mercedes models to admire too!
David Fitzpatrick
Oct 01, 2024
High class and friendly . Excellent work, well priced
Panayi
Sep 28, 2024
Thank you so much to Dave ! For fixing my s class coupe! After main dealer told me I needed a new shocks! Amazing work ! Highly recommend this company to anyone! Thanks again! To John Haynes Mercedes!
Angela Madhani
Aug 07, 2024
Excellent service through out great experience from start to finish.
Darren Holliman
May 27, 2024
Had a very strange issue with my Son's SLK 230k 1998. They diagnosed the issue and resolved the problem. It took a little longer than expected, but very pleased with the outcome. Thank you.
Sir Shopalot
May 26, 2024
Brilliant service as always, very honest and upfront about expected costs
Richard Grimster
Apr 29, 2024
We had a bad experience at the Mercedes main dealers in Portslade/Brighton, so we took our car to John Haynes and so glad we did.
They were so friendly and helpful, they even returned our car home to us as I had a cardiac arrest over Christmas and unable to drive.
Thank you for washing and cleaning our car too, it was not expected but much appreciated.
Keep up the good work, your an amazing team.
Kind regards

Richard
Craig Marcham
Apr 27, 2024
Professional and friendly service.
I needed camera calibration for a new wing mirror which was proving difficult. For a job that probably wasnt worth much to the garage they kept going trying various options until it was fixed, highly recommended.
Rosemary Jones
Apr 20, 2024
Unbelievably good service. We went there following recommendations. They couldn't have been more helpful - sorted out our Vito for a really reasonable charge. The chief tecchie spent a long time explaining everything when they handed it back. From now on they will be our first port of call. 100% trustworthy.
Thank you all so much
Martin Spartacus
Mar 18, 2024
Omg I wish I had found this company 20 years ago. What an amazing company, polite, prompt excellent value and expertise. This is the place my mercedes will always go for ever!
Edmund Fitch
Feb 26, 2024
The good guys for Mercedes service. No fuss no unnecessary jobs and good price. They are now my preferred workshop for my C220
Paul Kenning
Feb 11, 2024
All good gearbox feels much better! Straight forward service good courtesy car will use again for services i prefer expert work as John Haynes supplies! Paul kenning....
Kesh B.
Jan 09, 2024
Took my SL for service and everything was done to a very high standard.
Lee Reynolds
Jan 05, 2024
The best Mercedes dealership around. I would never go anywhere else. From start to finish David and the Team kept me informed whilst my car was in there. Keep up the good work David and the team. Excellent Service
Michael Bassett
Dec 16, 2023
I am so pleased that I contacted John Haynes Mercedes, my SLK 200 was giving me a little cause for concern, and without writing an essay on what it was, and what was done etc. I can honestly say I was blown away by the help and the skill in which they fixed my car.
And to cap it all the courtesy car had half a tank of petrol, unlike other garages who provide a car with just enough to get to the next petrol supplier.
Many thanks JH I will return for MOT and servicing.
J. Moore
Nov 25, 2023
I'm so pleased I read some posts about independent Mercedes dealers.
Due to these I hunted out one of my local independent dealer and promptly chose John Haynes.
Having had an engine management light on and being advised by Mercedes call out breakdown recovery of faulty Nox sensor issue.
The customer service and dedication I received from the service manager was phenomenal.
I will now look no further for care and service for both myself and my vehicle.
Thank you for your work in this repair and splendid customer service.
I could not have asked for more.
Ian Tate
Oct 31, 2023
Thank you for all you have done for me, all personally done and on time
Fantastic place will return well done
Thanks Mr tate
Martin Karaszy-Kulin
Oct 22, 2023
They are so good that I would not own a Mercedes if I did not have them to look after me
Peter Bacon
May 09, 2023
Fantastic customer experience. My Mercedes developed a fault while on holiday in the area. Despite being fully booked they look at the car to check it was OK to drive. As it wasnt I was provided phone numbers of other garages in the area to try. They even filled up the washer bottle, all for no charge. Thanks to Michael for a great experience.
David Burke
May 01, 2023
Since finding John Haynes Mercedes I have found there service exceptional. They take the time to explain the issues and when I had an urgent issue they dealt with it very promptly.. I highly recommend.
Tony L.
Mar 04, 2023
Amazing garage!,,, David went above and beyond in helping out with a Mercedes on the A24 with a set of space saver wheel bolts, he stayed late so they could be collected, this really helped a family out, such a nice guy, if you want great service at a genuine garage look no further, thank you :)
Gill Packham
Feb 25, 2023
Mercedes S320cdi. Automatic transmission fluid, filter and gasket change. David (head of service department) super efficient. What a breath of fresh air John Haynes Mercedes are. I would hasten to add collectively their knowledge is second to none and would recommend their services to everyone (as I do).
Kind regards. David Taylor
Adam McCallion
Nov 27, 2022
Classy outfit, amazing service from start to finish and able to provide honest expert advice without over selling. Clearly have a great trusting customer base and dont need to push you into more than you need. Excellence all round. Thank you
Zoomer Zoomer
May 10, 2022
Excellent parts department I regularly use, and expert advise on all things mercedes.
Andrew Bell
Feb 21, 2022
I initially instructed J. Haynes to carry out a complete inspection and report on our fundamentally sound, but mechanically tired Mercedes 280SL. The report was extremely thorough and Simon Haynes was happy to answer my questions and discuss ways forward. We have had most of the work carried out in two phases, primarily - (1) fuel injection and tuning, and (2) suspension, steering & braking, plus a number of other minor works to improve the car.

An itemised quote for labour and parts was provided for all work, and parts were ordered and paid for in advance of taking the car in. This meant that the works were carried out very quickly and efficiently.

The car now runs and drives beautifully.

Many thanks to the J Haynes team.
Cornel Lindemann-Berk
Feb 13, 2022
The filter of the fuel pump was damaged. Parts from it came in the fuel pump and destroyed it. Mr. Haynes and his Team helped us very much und built from two defect pumps a new working one, so that we can continue our holidays. Everything you can read on the homepage is part of the philosophie of the John Haynes Mercedes-Benz Independent Specialist. People who know so much over Mercedes Oldtimer are very rare on the world! Cornel Lindemann-Berk, Germany
Jason B.
Feb 06, 2022
John Haynes Mercedes completed the annual service on my 2015 E350 saloon. As per normal, David and the team delivered again. Excellent price but far more importantly, the service is impeccable. Dropped the car off, left for the day, job done and the car was valeted prior to collection. Puts most MB Main Dealers to shame. Thanks All - Great job as always and i'm always happy to recommend you to any MB owners i know.
Stephen Taylor
Feb 01, 2022
Amazing from the time the car was collected on time , updated when completed, returned on time and cleaned and polished to a high standard .
I would rather travel over a 100 miles than use my Mercedes dealer .
Ijm
Jan 14, 2022
Know their stuff it seems, I only use them for parts, but welll respected locally for repairs and servicing
Michael Hinch
Jan 13, 2022
John Haynes excellent highly recommend for everything Mercedes, service was great good feedback from mechanic and works completed, car also washed at the end very weldone.
Marc Barrett
Jan 09, 2022
First time using John Haynes and I won't take my SL r129 anywhere else. Superb work, extremely professional and great prices. My car is completely different to drive tha ks to these guys.
Paul Ceccherini
Oct 09, 2021
Great service, experts with Mercedes and though the hourly rate might be higher than a local garage achieved in 1 hour a job a local garage quoted 3. Will be back.
Matthew Hall
Feb 20, 2021
Been here twice now, once for a service and initially for some maintenance. Been happy with the quality of serviceand price on both occasions. Staff are friendly and happy to explain any queries you have. Definitely recommend.
Yeshwant Patel
Nov 30, 2020
My car, Mercedes A150 needed automatic gear box service. I was pleased with the service booking, quality of service and cost. A courtesy car was also provided for me to get on with my day. My first time there. I fully endorse this garage.
P. S.
Nov 02, 2020
Great service and would recommend them. They also gave me a courtesy car which helped out a lot. If we stay in Brighton I will continue going there instead of the dealership.
Kevin Hicks
Apr 06, 2020
I have been to John Haynes for a few jobs on my 2009 SLK from a service to a major drop-the-sub-frame repair. I have always found them precise in explaining the work required and associated costs. After work has been completed they have only charged for the actual time taken, not the workshop estimate. So five stars without hesitation. Excellent service and in my experience quality workmanship by knowledgeable staff.
Derek Kitchener
Feb 24, 2020
Very helpful in every aspect, they look after our 2 mercedes and understand they are our pride and joy , they are specialists and obviously love the brand.
John Moore
May 09, 2019
Probably the best Mercedes specialist around. I am very very fussy about my S55 AMG being kept in top condition and John Haynes never let me down
Richard
Jan 20, 2019
Based on my dealing with them (for a replacement wear & part) they were friendly, reasonably priced, efficient and honest. I'll definitely return when needed.
Robert Shemmans
Dec 02, 2018
I had an Engine Management light come up on the dashboard of a CLK and contacted the Service Department at John Haynes, they said to bring the car straight around. I had never taken my car to them before but they welcomed me with a cup of coffee and within half an hour the fault had been diagnosed and repaired. I will definitely be a regular customer from now on.
Neil Packham
Nov 09, 2018
Brilliant team, always do their best to help and never try to rip you off, unlike main dealers and shady back street garages.

Can't recommend John Haynes enough. These guys are an honest dying breed of engineers.
Peter Hewitt
Jun 13, 2018
John Haynes have maintained two Mercedes for me both 'S' class for probably the last 8 years. Previously i have been going to a main dealer but frankly I found them expensive, and more importantly, uninterested.
I was recommended to JH by a colleague and have always found them to interested, highly competent and sensibly priced. I recently bought an S600 (not from them) and the Service team (David) were incredibly helpful in guiding me through the issues to look out for. I can not recommend them too highly to anyone with an 'out of warranty' Mercedes.
Hugh O'Neal
May 29, 2018
I have been a customer of John Haynes Autotechnics for 15 years, more frequently recently after needing help with repairs to an elderly classic Mercedes. I am always impressed by the depth of knowledge and unrivalled expertise of the whole team. On many occasions they have put right potential problems with my car which was much appreciated. I would not go anywhere else!
Philip Thain
May 18, 2018
I have been a customer of John Haynes for more than 20 years. They are experts in Mercedes Benz cars of all ages, and have always given me excellent service. In my experience no job is genuinely too big or too small, from changing a bulb to a complete 'bare metal' restoration!
Always busy, but never too busy to offer a detailed explanation on the work that needs doing to a vehicle, the front of house staff are very welcoming and friendly.
I live more than 50 miles from John Haynes' workshop, but am happy to take my vehicles that far for the excellent service that I have consistently received over the years. Consequently I would happily recommend John Haynes Independent Mercedes-Benz Specialists to anyone.
Benjamin Gleadall
Feb 21, 2018
Excellent customer service and workmanship, very reasonable prices and will give advice and options on repairs and maintenance issues. Wouldn't take my car anywhere else.
Richard
Feb 21, 2018
Very thorough and knowledgable. We've given our two Mercedes both new leases of life. Thank you.
Geoff Perfect
Jan 31, 2018
I can really recommend John Haynes, they have looked after my Mercedes Benz since we moved to this area. They were suggested to me by other owners as their expertise is well known. I found them to offer very good customer service backed up with technical knowledge.
Steven Cox
Jan 23, 2018
Great personal service, expert workmanship and knowledge, fair prices. I wouldn't take my MB anywhere else
Nat Robo
Jan 22, 2018
I have been a customer of John Haynes for the last 18 years, and without a doubt they are the best in the business, the passion for Mercedes is unparalleled even to the point of me purchasing 2 SLs from them in the past without even a test drive! They are completely trustworthy and honest in their approach to looking after your pride and joy, thank you David and the team for your professional service.

Gary and Jan Ransome. Rye East Sussex.
Joseph Feesey
Jan 07, 2018
I have had my car repaired and serviced here for several years. I am always more than happy with the work carried out, and customer service given by David.
They may not be the cheapest form of servicing, but you know your Mercedes is in very safe hands. You will also get a very quick diagnostic as they know these cars inside out, which could save you pounds elsewhere!
Thanks for all your help over the many years I have visited.
Steve White
Dec 26, 2017
Very attentive and professional. Prices higher than mainstream outlets, but they are specialists and will not cut corners. Gave good advice for coming year regarding next MoT.
PestFix Business PestFix
Dec 25, 2017
The John Haynes team are friendly, knowledgeable and are giving me great parts and service support during my restoration of a 560 SEC, their labour rates and parts prices are very competitive, I would not go anywhere else.
Edward Park
Dec 11, 2017
Excellent service in every way. I make a 120 mile round trip when I need maintenance or servicing to my classic Mercedes, as they have proved trustworthy and highly knowledgeable and I'm happy with the work they do. Thanks especially to David Sandell, Service Mananger
Lyn Cowley
Dec 10, 2017
John Haynes Independent Mercedes Specialist Worthing is absolutely amazing. The staff are brilliant and very helpful. I would not take my car anywhere else. So much better then the dealership. They are honest and good at their job.
Tim Poole
Nov 18, 2017
great service does not charge unnecessarily all ways use john hains for my fleet # sussex chauffeurs
Melanie Stickland
Nov 03, 2017
Always happy to help.. We've used Haynes for the past few years now and wouldn't go anywhere else.. Can help with the smallest of enquiries to service, mot or bodywork issues.. Brilliant
Arch Gardoogle
Oct 27, 2017
I have been a satisfied customer for over 10 years - having variously had my E320cdi; SL500 and now ML350 Bluetec maintained by John Haynes. Great service, super quality and fair prices
Charles Horton
Oct 26, 2017
I have Haynes look after my cars for over 10 years and found the service and attention to detail very good. Would and have recommended them to my Mercedes owner friends.