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Welcome to MJ Warner

Used Volkswagen Cars, Servicing & Parts Hertfordshire

We are a family run business since 1965, offering quality Volkswagen Approved Used cars, affordable finance, excellent customer service, and our own bodyshop for anything you need.

We even offer a unique, free of charge, 'vehicle sourcing' service. Just tell us the vehicle you're looking for and our national car buyer will try and locate it for you.

  • Free collection & delivery

  • Online bookings

  • Insurance claims handled for free

  • Vehicle sourcing service

  • Courtesy cars

  • Competitive finance & insurance

Explore Approved Used Cars

MJ Warner is a participating retailer in the award winning Volkswagen Approved Used car programme.
It's designed to give you peace of mind and confidence when buying a used Volkswagen. You can be safe in the knowledge that we've got everything covered.
It’s our commitment to you to provide the best possible used car buying experience.

Volkswagen POLO

  • 2019 (68)

  • 45,900 miles

  • Petrol

  • Manual

Only £14,995

Volkswagen POLO

  • 2020 (20)

  • 11,520 miles

  • Petrol

  • Manual

Only £17,995

Volkswagen POLO

  • 2019 (19)

  • 25,057 miles

  • Petrol

  • Automatic

Only £18,995

Meet the MJ Warner team


Liam Filler - Bodyshop Workshop Manager


Brian Clarkson - Bodyshop Manager


Daniel Da Silva - Business Manager


Russell Mortimer - Parts Manager


Call Brett - Senior Service Advisor


Calum Phillips - Assistant Bodyshop Manager


Ernie - Company Mascot

Service Team

Bodyshop Team

What our customers say

"Key wouldn't connect and as it set off alarm. I rang MJ Warner and they came straight out to help me. No charge involved and as I had my grandchildren with me it was a difficult situation to be in. Many thanks to them for being so kind, helpful and efficient"

Lesley Hart

"Recommended to this place even tho I live in East London. Wanted an Octavia in good nick & they found me the perfect one within about 10 days!! Incredible low mileage & nick for the price - even had petrol in tank too!! Thx Myles & Rob for great service & friendly welcome & importantly good strong cuppa! It was certainly worth the journey cos they’re not like garages round here, it’s like you’re part of their family - you can really trust them"


"Very friendly service and extremely helpful staff. They took the time to ensure I choose the right car and I found the experience very enjoyable. The aftersales was first rate. Highly recommended."

Lee Carlisle