Q  Does Diagnatech Limited have full dealer capabilities?

A Yes. Our equipment portfolio is extremely extensive. We have full dealer level diagnostics along with standalone systems. We carry extensive specialist tooling enabling us to carry out repairs efficiently and correctly adhering to the Mercedes Benz manufacturing standards


Q How do we keep your car secure?

A Our secure facility includes High Definition CCTC Cameras which are monitored remotely. Our Level 4 GSM / Redcare police monitored alarm system is insurance approved and has a panic alarm functions. All vehicles are kept securely locked in a 2.4m high gated compound to ensure all customers cars and personal belongings are secure.


Q Can i wait while my car is serviced?

A We have a facility to ensure our customers are comfortable in front of a TV with a coffee or tea in our front waiting room. We are more than happy to drop customers into Welwyn Garden City town centre if they wish for some well earned retail therapy.


Q What is your Workshop Labour Rate?

A We offer our customers a fantastic base rate of £55 per hour across all our services.


Q Can you collect and deliver my Mercedes Benz or give me a loan car?

A Of course. We realise how important it is to be mobile while your vehicle is being worked on. We can collect and deliver your vehicle at your own convenience from a workplace or home address. We do have new Mercedes Smart cars which we offer our customers if they need them. Please be advised that if a loan car is required, we need to reserve one for you and may need specific details.


Q Do you operate an out of hours service?

A Yes. Here at Diagnatech Limited we don't need sleep! Only joking. We offer our customers late or early appointments as they need them, so if you find yourself having a long day or need an evening appointment we can help.We also offer a breakdown service , so if you get stuck somewhere or just need some advice don't hesitate to contact us. We like to inform all our customers to call us at any time as either Paul or James will be around to help in whatever way they can.


Q Do you use Genuine Mercedes Benz Parts?

A All parts and lubricants used are genuine Mercedes Parts. We are a trade partner of Mercedes Benz of Stevenage.



Full Collection and Delivery service available. Free of charge. Complimentary valet on every service.


With Complimentary refreshments, we offer a comfortable waiting area with TV and Internet connection, where you can relax while waiting for your Mercedes Benz


In a hurry? We can have all paperwork ready when you drop off your vehicle to one of our team if pre-booked. Drop off is available from 6.30am


Exclusive to Diagnatech Limited. This service we offer to our customers if they need early or late night appointments. We can offer appointments up to 9pm Monday-Friday


Diagnatech Limited is registered with Mercedes Benz as an official Star Partner, which allows us to use their Genuine Parts catalogues and link directly to their UK warehouse for immediate stock levels and pricing.

For Everything Mercedes


Tel: 01707 527557

James Poltorak
Tel: 07789 955 889

Paul Poltorak
Tel: 07780 602 816