Mercedes Diesel Tools

Written by sonja herbert
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Mercedes Diesel Tools
Keep your Mercedes up with the tools you need. (suv mercedes ml image by alma_sacra from

Since the introduction of the 260D car in 1936, the Mercedes Benz company has been focused on diesel-powered automobiles and its cars are still on the cutting edge of today's diesel vehicles. To keep your Mercedes running smoothly, it's advisable to own some of the specialised Mercedes diesel tools.

Engine Tools

If you need to remove the pre-combustion chambers on your diesel motor, use a slide hammer with a threaded adaptor or get the special slide hammer adaptor with two different threads. Other specialised wrenches and sockets include the pre-chamber retainer ring pin wrench, which removes and installs the threaded retainer ring of the pre-chamber, and a multi-spline socket to remove the pre-combustion chamber retainer ring on later injection diesel models. For the glow plugs, you can use a glow plug bore reamer, which is a pencil-type reamer that removes the carbon deposit from the glow plug holes. This reamer comes for turbo or non-turbo diesels. Many other tools, like hex head sockets, used to access the head bolts, can be used for both diesel and gasoline Mercedes Benz cars.

Cylinder Head and Engine Timing Tools

If you need to adjust the valves of your diesel engine, a pair of diesel valve adjusting wrenches and retaining nut holders come in handy. The diesel spring plate holding wrench will hold the retaining nut as you adjust the valves. To check the compression, get a compression gauge and an adaptor. The gauge comes with a hose and the adaptor of your choice. Make your car run its best with some new glow plugs, or analyse your old plugs with the glow plug analyzer, which tests 12-volt glow plug systems in the newer model diesel engines. To reach the deep port injectors and the glow plugs easily, a diesel compression adaptor extension can be used.

Injection Tools

Test your car's opening pressure, the spray pattern and the cleaning injectors with a diesel injection nozzle tester. You can get this tool in a kit, which includes a gauge and the pump and steel adaptor lines. This kit is adaptable for gasoline injectors, too. A specialised diesel fuel pressure tester lets you measure the fuel pressure in high pressure CDI-type engines and a timing tool allows you to calculate the start of the fuel delivery with the RIV method. To maintain your timing while working on the pump, use a diesel pump lock pin, which locks the pump cam. The diesel drip tube helps you adjust the start of the fuel delivery and a vacuum control adjusting roller can measure the vacuum pressures on the control valve. A diesel nozzle socket and an injection socket are helpful tools, too.

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