
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
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Services



Reviews (67)
Ian Johnson
May 04, 2025
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
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
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
Daz The Sailor
Mar 23, 2025
Niall Bradbury
Feb 08, 2025
Rob Mockett
Jan 30, 2025
Zbigniew Kosik
Nov 08, 2024
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!
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
Panayi
Sep 28, 2024
Angela Madhani
Aug 07, 2024
Darren Holliman
May 27, 2024
Sir Shopalot
May 26, 2024
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
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
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
Thank you all so much
Martin Spartacus
Mar 18, 2024
Edmund Fitch
Feb 26, 2024
Paul Kenning
Feb 11, 2024
Kesh B.
Jan 09, 2024
Lee Reynolds
Jan 05, 2024
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.
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.
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
Martin Karaszy-Kulin
Oct 22, 2023
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
Tony L.
Mar 04, 2023
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
Kind regards. David Taylor
Adam McCallion
Nov 27, 2022
Zoomer Zoomer
May 10, 2022
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.
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
Ijm
Jan 14, 2022
Michael Hinch
Jan 13, 2022
Marc Barrett
Jan 09, 2022
Paul Ceccherini
Oct 09, 2021
Matthew Hall
Feb 20, 2021
Yeshwant Patel
Nov 30, 2020
P. S.
Nov 02, 2020
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
John Moore
May 09, 2019
Richard
Jan 20, 2019
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
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.
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.
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
Richard
Feb 21, 2018
Geoff Perfect
Jan 31, 2018
Steven Cox
Jan 23, 2018
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.
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.
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
PestFix Business PestFix
Dec 25, 2017
Edward Park
Dec 11, 2017
Lyn Cowley
Dec 10, 2017
Tim Poole
Nov 18, 2017
Melanie Stickland
Nov 03, 2017
Arch Gardoogle
Oct 27, 2017
Charles Horton
Oct 26, 2017