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Old 07-31-1999, 11:32 PM
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I have an '89 300E that needs new injector seals. Price at local shop is about $140 plus new injectors, at $30+ each if needed. I'm told to expect at least a couple of injectors will need replacement at 160,000 miles. I can buy new injectors, seals, insulators, and o-rings for about $150 from IMPCO in California. My mechanics tell me replacing the injectors is a relatively simple operation that a home mechanic can do, and I am about to take on the job.

My concern is that there might be adjustments to the fuel injection system that will be required after this repair and that I might not get the thing started after saving myself some money. The car has recently had a full engine service and all adjustments are said to be as specified. They tell me that their testing showed some bad fuel injector seals.

With adjustments presumably made correctly, can I expect to have the engine run acceptably well after I replace the injectors? My shop will make any needed adjustments when I bring it back, I am just concerned about the state of things after I have replaced the injectors.

Any cautions, advice, or other information would also be appreciated.

Old 08-01-1999, 09:32 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
You should be OK to get to the shop to have Lambda checked after you replace the injectors. You will have to have some tools that not all DIY's have. Look the job over in advace before you do the job.


Old 08-05-1999, 01:07 PM
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If I may strain you further, please let me know what sort of tools will be needed beyond a full set of combination metric wrenches 4-24 mm, sockets in 1/4 and 3/8 drive from 4-18 mm,extensions, and the usual screwdrivers, adjustable wrenches, channel-locks and the M-B supplied tools. Obviously, special tools could be the difference in cost between DIY and let Dieter do it.
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