Mercedes-Benz GL X166

Mercedes-Benz GL X166

GL350 CDI Bluetec 258HP Diesel · Diesel · 258hp / 620Nm stock

Other Common Tuning Services

We provide a wide range of recalibration services for this vehicle which can be applied to the engine ECU.

These services are billable separately. Starting at £35 to a maxiumim of £75 for any mix of add ons (where they are supported by the car)

All of these options are only available where we are tuning an ecu or where we have already tuned the ECU. If we have never seen your car before at the very least a Stage 1 tune is needed

  • DPF Off (Free)
  • EGR Off (Free)
  • Adblue/SCR Off
  • NOX Off
  • OPF Off
  • Decat
  • O2 Sensor Off
  • EVAP Off
  • Exhaust Flaps Off
  • MAF Delete
  • Swirl Flap Off
  • Speed Limit Off
  • Immo Delete
  • Active Grill Delete
  • Kickdown Delete
  • READINESS Cal
  • Secondary Air Pump / Anti Smog Delete
  • Start Stop Delete
  • BMW CVN Patch
  • Hotstart Fix
  • Switchable Maps
  • Idle Speed Adjustment
  • DTC/Fault Code Off
  • Pop and Bang
  • Launch Control
  • Anti Lag
  • Crackles and Overrun
  • Hardcut Limiters
  • REV Limit Adjustment
  • BMW Performance Display Calibration

Walnut Blasting for Mercedes-Benz GL

Carbon Builds up quickly in modern Diesel vehicles. Llandow tuning provides a complete Walnut blasting service where we truly remove all the cabron from the inlet valves.

BMW Sourced equipment is used and enables us to walnut blast everything fom a VG Fold, to Audi RS4 not to mention the odd Mercedes-Benz GL

Forget the chemical treatments, aka Forte, Tec4 or TerraClean. In our opinion we've tried these products and they simply didn't work as advertised

If your Mercedes-Benz is over 50,000 miles and is a diesel or direct petrol injection then consider a walnut blast before a remap to see even bigger gains and better fuel economy.

Walnut Blasting

Inlet Removal and Carbon Removal using our Walnut Port Blasting Equipment

From

£195

Brake Disc Skimming for Mercedes-Benz GL

In an ideal world you'd change your brake discs every time you change your brake pads. Why? Because the mating service is flat on a new disc and it isn't on a used one. Making a disc flat with an on car brake lathe resolve this issue and means you get the most from your new pads without compromising on performance

We can remove rust, lips and brake judder.

If you want to make your disks better than new on your Mercedes-Benz GL our brake skimming service might be for you. Your discs will be matched directly to the runout of your wheel hubs meaning they are truly flat, something even a new disc cannot deliver.

Our equipment is OEM approved by Porsche, Mercedes-Benz, Ferrari and BMW

Brake Disc Skimming

We chanrge for disc skimming based on us also changing the pads and the associated labout on the same axle.

Small Disc (From)

£10 per side

Large Disc (From)

£20 per side

This doesn't include stripping the brakes down, this would be the typical cost of a set of pads and discs minus the cost of the parts.
Per side means:- Per side of the disc and the prices are from. If there is a lot of rust, expect a higher price. If the disc is warped and needs more than one cut, expect a higher price.
If the discs are cheap, then it's going to work out cheaper to replace them than skim them.

Aircon Regas for Mercedes-Benz GL

Cardiff/Bridgend  Mercedes-Benz Aircon Regas

Most manufacturers recommend air-con servicing every 2 years.
If you don’t regas the air-con system in your Mercedes-Benz, it will gradually become less efficient, making the car uncomfortable in hot weather, and take longer to demist the windows in winter.

Not regassing your air-con system will be bad for it in the long run, too, with pipes likely to crack and parts likely to seize up if it isn’t used which can end up costing more!

Llandow Tuning we can offer both Air-Con Gasses the R134a and the R1234yf, along with an antibacterial cleaner. This Anti-Bac Cleaner cleans the build up of fungus and bacteria from within the evaporator, this is where the bad smells in the air con system are from.

Aircon Regas

R134a (from)

£55

R1234yf (from)

£75

Engine Checkover / Code Scan Service for Mercedes-Benz GL

Take the guesswork out of engine running issues with a comprehensive datalogging session for your Mercedes-Benz GL (X166) . Pinpoint problems, datalog running parameters, check emissions and get an insight in to your engines condition

The Llandow Tuning Engine Checkover is a great place to start with any tuning project, poorly running car or even a vehicle where you want to benchmark its current condition

Think of the Engine Checkover as a code scan plus a dyno session plus a whole load of diagnostic tests to help understand whats happening internally

We can also offer a Complete Dealer Code scan for nearly every make and model.

Dealer Code Scan

We have just about every tool under the sun, we should be able to provide a dealer code scan on anything from a Bentley to a lamborghini

Dealer Code Scan

£55

Engine Checkover

Basic Checkover

£95

Full Checkover

£295

ECU Repairs for Mercedes-Benz GL

Diesel ECU Testing and Repairs for most Mercedes-Benz GL are undertaken by Llandow Tuning.
We have a fully equipted modern ECU lab with a number of test bays. We have ECU simulation systems as well as the very letest LeCroy and Tektronics bench oscilloscopes.
In order to help us identify a fault we need a detailed report of the problems with the vehicle as well as what tests to date have been performed. Where necessary we will repair any damaged ecus or offer a refurnished ECU which is often plug and play ready.

We have provided ECU Repair services for most dealer networks including: Sytner, Stratstone, and Dick Lovett

Engine ECU Testing

Diesel ECU Testing

From £95

Petrol ECU Testing

From £95

A practical tuning and service record for your Mercedes-Benz

Built around the specific model, generation and powertrain you selected.

Llandow Tuning develops and supports vehicle-specific calibration work in-house. Saving this car to My Garage keeps the selected powertrain, tuning data and future service areas together so you can return to the same vehicle context later.