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Mercedes W123 Diesel Short Bypass Coolant Hose Replacement

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  1. Mercedes W123 Diesel Short Bypass Coolant Hose Replacement, Short Bypass Coolant Hose: шаг 1, изображение 1 из 3 Mercedes W123 Diesel Short Bypass Coolant Hose Replacement, Short Bypass Coolant Hose: шаг 1, изображение 2 из 3 Mercedes W123 Diesel Short Bypass Coolant Hose Replacement, Short Bypass Coolant Hose: шаг 1, изображение 3 из 3
    • Required: In order to remove your short cooling bypass hose you will first need to remove the thermostat housing. The thermostat housing gasket will need to be replaced, with fresh gasket sealant, at the end of this job. For guidance on removing the housing and replacing the gasket [недействительная ссылка на руководство]

  2. Mercedes W123 Diesel Short Bypass Coolant Hose Replacement: шаг 2, изображение 1 из 2 Mercedes W123 Diesel Short Bypass Coolant Hose Replacement: шаг 2, изображение 2 из 2
    • This is the short coolant hose to be replaced. You can see it leaking in this picture. This is a typical failure.

    • During the thermostat housing removal process you'll have already loosened the upper hose clamp on the short hose. Now loosen the lower clamp.

    • With the lower clamp removed you'll be able to pull the short hose off the water pump inlet.

    • Use a pair of pliers for grip if you need to, but it should pull off by hand.

  3. Mercedes W123 Diesel Short Bypass Coolant Hose Replacement: шаг 3, изображение 1 из 1
    • Here is the short hose off of the car.

    • Measure its length, and then mark that length on the bulk hose you purchased.

    • Use a utility knife or other appropriate cutting tool to cut the length of hose you need to replace the old short hose.

    • Install the new hose, and then re-install the thermostat housing and gasket.

Заключение

To reassemble your device, follow these instructions in reverse order.

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Nicolas Siemsen

Участник с: 12/06/13

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I just wanted to say thank you to Nicolas Siemsen for this piece. I am yet to do it because I am yet to buy the piece of hose. But seeing how clearly he wrote the article with pictures I am confident that I can do it. Thanks again.

ony632000 - Ответить

Tips: Be sure to replace the clamps with new worm-drive type having combination hex-slot screw heads. These are far superior to original type. Also be sure to orient the clamps so screw heads point toward front of car and next to the cylinder head. The latter is necessary for proper clearance as air conditioning bracket sits adjacent to thermostat housing on some versions. Take time to carefully situate the hose clamps as they are almost impossible to access once compressor bracket is in place. Also take time to clean metal surfaces to which the hose connects - lightly sand or scour with metal brush to remove deposits - assuring proper seal is important before assembly.

analogcd - Ответить

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