Harris-Mayes 4X4

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Harris-Mayes 4X4 At Harris-Mayes 4X4, we pride ourselves on delivering high quality services add sales for your Land

A stunning Land Rover Series I we recently had in the workshop.It came to us with a major oil leak, which we traced back...
18/09/2026

A stunning Land Rover Series I we recently had in the workshop.

It came to us with a major oil leak, which we traced back to the front main crankshaft oil seal. Once diagnosed, we sourced the correct parts and got to work.

Thankfully, everything came apart and went back together nicely, making for a very smooth job and most importantly, no more oil leak!

The Series I is where the Land Rover story began, first introduced in 1948. Designed as a tough, simple and capable working vehicle, these early Land Rovers have become true British motoring icons, and it’s always a pleasure to have one in the workshop.

Keeping the classics on the road.

LAND ROVER INGENIUM TIMING CHAIN PROBLEMS If you own a Land Rover or Range Rover fitted with an Ingenium petrol or diese...
17/09/2026

LAND ROVER INGENIUM TIMING CHAIN PROBLEMS

If you own a Land Rover or Range Rover fitted with an Ingenium petrol or diesel engine, you may have heard about the dreaded timing chain problems.

Common warning signs can include:

* Rattling on start-up
* Constant rattling while driving
* Rattle when the stop/start system kicks in
* Engine Management Light (EML)
* Camshaft/crankshaft position or correlation fault codes, commonly including P0016, P0017, P0018, P0019, P0340 and P0341 depending on the engine and fault

You may have already visited a garage and been told the words nobody wants to hear:

“Your timing chains are noisy.”

Fear not! We replace Ingenium timing chains on a regular basis. Unfortunately, our experienced technicians are currently replacing at least one set a week.

We use genuine Land Rover timing chain components only. We’ve found that the small saving offered by aftermarket kits simply isn’t worth the risk. We’ve seen various aftermarket components fail, whereas we’ve had excellent results using genuine parts.

Land Rover has also updated various components over time, helping to reduce the chances of the same problem occurring again.

This is a lengthy repair. On these engines, significant dismantling is required, including gearbox removal, to gain access to the timing chain assembly.

If your Ingenium engine is rattling, displaying an engine management light, or you’ve been told your timing chains are stretched or noisy, get in touch with us.

We’re happy to answer any questions and get your vehicle booked in for a timing chain replacement.

DON’T KEEP IGNORING IT!

A timing chain replacement is a lot cheaper than what can come next if the chain fails or jumps timing.

Message or call us today for timing chain enquiries and bookings.

LAND ROVER DPF FAULTS? EXHAUST FILTER FULL? Have you got “Exhaust Filter Full” showing on your dashboard?Have you alread...
16/09/2026

LAND ROVER DPF FAULTS? EXHAUST FILTER FULL?

Have you got “Exhaust Filter Full” showing on your dashboard?

Have you already tried driving on the motorway to get the DPF to clean itself, but the warning still won’t go away?

You may also have DPF related fault codes stored, such as:

P2463 – Diesel Particulate Filter Soot Accumulation
P2458 – DPF Regeneration Duration
P2459 – DPF Regeneration Frequency
P244A / P244B – DPF Differential Pressure Too Low / Too High
P2002 – DPF Efficiency Below Threshold
Etc etc etc

Maybe you’ve already been to another garage and been told the DPF can’t be cleaned and needs replacing.

A NEW DPF ISN’T ALWAYS NECESSARY!

We can professionally clean the soot from your DPF while it is still fitted to the vehicle there’s no need for us to remove it and send it away.

However, we don’t just clean it and send you on your way.

Before carrying out a DPF clean, we will assess the system to determine why the DPF has become blocked and whether the DPF itself is actually damaged.

If the DPF is healthy and simply overloaded with soot, we can clean it and investigate the underlying cause. Whether that’s a fault stored within the engine control module, another engine related issue preventing regeneration, or the vehicle’s driving conditions not allowing regeneration to complete correctly.

Simply cleaning a DPF without finding out why it blocked in the first place could mean the problem comes straight back.

If you’ve got a Land Rover or Range Rover or another brand with a DPF warning, failed regeneration or soot accumulation fault, get in contact with us and we’ll get it properly diagnosed.

Range Rover VoguePowertrain control module ( PCM ) Software Restored to Factory Spec. This Range Rover Vogue came in to ...
06/09/2026

Range Rover Vogue
Powertrain control module ( PCM ) Software Restored to Factory Spec.

This Range Rover Vogue came in to us for an Engine Control Module (ECU) software update.

The customer had recently purchased the vehicle and discovered that the engine software had previously been altered, with the EGR and DPF systems mapped out. They weren’t happy with this and asked us to return the vehicle back to the correct factory specification.

Using the Land Rover diagnostics, we successfully restored the Engine Control Module back to factory settings and updated it with the latest available software.

🚘 Back to factory spec
💻 Latest ECU software installed
🔧 Dealer programming equipment
😊 One happy customer!

If you need software programming, module replacement, coding or software updates for your vehicle, please get in touch with us.

SICK OF DRIVING YOUR DEFENDER WITH YOUR KNEES AROUND YOUR EARS? Feeling a little cramped behind the wheel? Wish you had ...
03/09/2026

SICK OF DRIVING YOUR DEFENDER WITH YOUR KNEES AROUND YOUR EARS?

Feeling a little cramped behind the wheel? Wish you had just a bit more room to stretch those legs?

Why not book in with us for a set of extended seat rails!

✅ More legroom
✅ More comfort
✅ Better driving position
✅ Fewer yoga poses required to get behind the wheel

A simple upgrade that can make your Defender driving experience that little bit better!

Drop us a message to get booked in!

After all the hard work and effort everyone has put in over the last few months, we headed to Topgolf after work today f...
15/08/2026

After all the hard work and effort everyone has put in over the last few months, we headed to Topgolf after work today for a well deserved team social! ⛳️🏌️‍♂️

A great opportunity to reward everyone for their recent efforts, while enjoying some friendly competition, team building and a few laughs along the way.

A massive thank you to the whole team for everything you’ve been putting in recently it certainly doesn’t go unnoticed. 👏

Great teams work hard together, but it’s just as important to make time to enjoy the wins together too! 🙌

This Defender came into us with a very outdated Kenwood flip out radio. We have completely modernised it with an Alpine ...
10/08/2026

This Defender came into us with a very outdated Kenwood flip out radio. We have completely modernised it with an Alpine double din featuring AppleCarPlay & a reversing camera. A new facia was added and buttons neatly relocated. We added this lovely Land Rover Logo on start up giving it a real OEM finish.

A stunning Aston Martin V12 Vantage  in for air conditioning service.
21/07/2026

A stunning Aston Martin V12 Vantage in for air conditioning service.

Another day in the office…
26/06/2026

Another day in the office…

Nothing better the sun is shining and two beautiful defenders! P.S both are for sale check our  website!
25/06/2026

Nothing better the sun is shining and two beautiful defenders!
P.S both are for sale check our website!

Address

Unit 2, Woodcock Hill
Rickmansworth
WD31PQ

Opening Hours

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

Telephone

+441923711800

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