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Monday 8am - 5:30pm Tuesday 8am - 5:30pm Wednesday 8am - 5:30pm Thursday 8am - 5:30pm Friday 8am - 4pm

Barny Jones Ltd

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Barny Jones Ltd

INDEPENDENT JAGUAR & LAND ROVER SPECIALISTS IN SURREY & HAMPSHIRE. SERVICE - REPAIRS - MOT'S.

29/10/2026

Blocked DPF? It doesn’t always mean a new one. 🔧

This Discovery Sport came in with its diesel particulate filter badly blocked, with over 36g of soot. Take it to a main dealer and they’d say it can’t be regenerated.

So we took the exhaust off, filled the filter with cleaner and let it work. Next, a forced regeneration out on the road. We clean it first so it isn’t puffing clouds of smoke at everyone else.

We also show what’s inside a DPF, and what a cracked one looks like, the kind that does need replacing.

Independent Jaguar & Land Rover specialists, Crondall, Farnham.

📞 01252 781 386 · barnyjones.co.uk

20/10/2026

From rusty rail to fresh paint, in about a minute. 🔥

A Jaguar XJS in the workshop with rot in the chassis rail. We cut the rusty section out, made up new metal to fit, welded it in and ground it flush.

Then it was sealed and painted, ready to go back together.

Independent Jaguar & Land Rover specialists, Crondall, Farnham.
📞 01252 781 386 · barnyjones.co.uk

14/10/2026

F-Type in for a gearbox oil change. 🔧

We loosen the fill plug first, so we know we can fill it back up, then drain the old oil out. After the first top-up, we run through the gears and set up the computer to read the gearbox temperature.

The level is checked between 30 and 50 degrees. This one was at 45, so we topped up the gearbox oil until it dripped out of the fill plug. That means it’s at the correct level, and we just wait for a slower, steady drip.

Independent Jaguar & Land Rover specialists, Crondall, Farnham.
📞 01252 781 386 · barnyjones.co.uk

13/10/2026

Got a plug-in hybrid? These are the failures we’re seeing most. ⚡

Jez runs through the common ones on hybrid Jaguar and Land Rover models. The 48 volt battery on MHEV vehicles causes quite a few problems. High voltage heaters develop an internal fault and lock up, and that can lead to battery damage on plug-in hybrids and the I-PACE.

Then there’s the DC-DC converter, the high voltage control unit that handles 12 volt charging, the electric AC and the heater. There’s a worldwide Land Rover recall on these right now.

If you want us to have a look at your hybrid, book it in.

Independent Jaguar & Land Rover specialists, Crondall, Farnham.
📞 01252 781 386 · barnyjones.co.uk

13/10/2026

Old school fuse and no multimeter to hand? Try this. 🔧

Some of you might not know this trick for old school fuses on old school cars. If you want to test one, save getting your multimeter out.

Get your fuse, open your phone and use it to dial a number. If you can dial, you know the fuse is good.

Independent Jaguar & Land Rover specialists, Crondall, Farnham.
📞 01252 781 386 · barnyjones.co.uk

Trial Reel

13/10/2026

09/10/2026

Warning lights on your plug-in hybrid? Or no heat at all? 🔧

First up, a high voltage control unit out of a plug-in hybrid Discovery Sport. The DC-DC converter inside has failed, bringing up several warnings on the dashboard. It’s a common issue on most JLR vehicles.

Then a high voltage heater, also from a Discovery Sport and a very common failing item. On an I-PACE it’s where all your cabin heating comes from, so no heat usually means this unit. Replacing it on an I-PACE means removing the entire battery.

Independent Jaguar & Land Rover specialists, Crondall, Farnham.
📞 01252 781 386 · barnyjones.co.uk

08/10/2026

01/09/2026

👀

Address

Unit G, The Factory, Crondall Lane
Farnham
GU105DW

Opening Hours

Monday	8am - 5:30pm
Tuesday	8am - 5:30pm
Wednesday	8am - 5:30pm
Thursday	8am - 5:30pm
Friday	8am - 4pm

Website

http://www.barnyjones.co.uk/

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