97 300E Diesel DIY Fuel Filter - Mercedes-Benz Forum

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post #1 of 11 (permalink) Old 02-28-2009, 05:18 PM Thread Starter
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97 300E Diesel DIY Fuel Filter

I'm relatively new to this site, and need some help. I have searched and searched for DIY instructions on how to replace the fuel filter on a 97 300E Diesel; I've found gassers but no Diesel specific instructions.

Thanks,
Jason
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post #2 of 11 (permalink) Old 02-28-2009, 09:15 PM
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Those diesels have filters on the top of the engine.
You put the filter underneath the bracket and tight it up with big bolt on the top. Check the torque carefully since the big bolt shouldn't have too much torque.
Don't prefill the filter to avoid contamination. Putting the car "nose down" will help with priming it after the job. Make sure the battery is well charged and keep the charger handy.
Welcome to the forum.
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post #3 of 11 (permalink) Old 03-01-2009, 11:53 AM
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Get the service DVD for your car and your searching will be over.

Star Service CDs and DVDs

Kent Christensen
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post #4 of 11 (permalink) Old 03-01-2009, 04:45 PM Thread Starter
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Thanks for the info.

Quote:
Originally Posted by Kajtek1 View Post
Those diesels have filters on the top of the engine.
You put the filter underneath the bracket and tight it up with big bolt on the top. Check the torque carefully since the big bolt shouldn't have too much torque.
Don't prefill the filter to avoid contamination. Putting the car "nose down" will help with priming it after the job. Make sure the battery is well charged and keep the charger handy.
Welcome to the forum.
One last question, does the entire holder assembly tilt to one side or the other during the removal, or does it remain stationary loosening the bigger bolt on the top and unscrewing the filter?
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post #5 of 11 (permalink) Old 03-01-2009, 05:05 PM
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Hopefully the drawing makes it clear. No tilting.

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post #6 of 11 (permalink) Old 03-01-2009, 05:15 PM Thread Starter
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Thank you very much, I really need to get this filter changed as the car is wanting to stall from time to time (not to mention I ran SVO thru it about a month ago, about 10 gallons).
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post #7 of 11 (permalink) Old 03-02-2009, 06:59 AM
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When I would replace the filter during a service i would fill the filter with clean diesel because it takes alot of cranking to prime the empty filter. alot of stress on the starter and the battery.
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post #8 of 11 (permalink) Old 03-02-2009, 10:17 AM
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There is no such thing as "clean diesel" coming out of pump not saying anything about dirty fingers and containers.
Even if you burn old starter it is still way cheaper than set of injectors and the pump.
After years of long cranking the diesels after any fuel system work, I just discovered that pushing the car nose down on the driveway after the job makes whole difference. Especially on W210
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post #9 of 11 (permalink) Old 03-02-2009, 10:21 AM
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LOL it is clean enough right from the pump into a clean container or you can used whats called diesel max. Been doing it for 25 years and no problems with pump or injectors. I dont think buring up a starter is the answer
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post #10 of 11 (permalink) Old 03-02-2009, 10:53 AM
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I've been priming diesels with the engine mounted pumps about the same time period and never burned a starter.
We all are taking chances in our life -I take mine with starter.
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