SC-C230

My E55 has been doing this for a year now. And it is becoming more frequent.
I just replaced the starter and the issue still continues.

Turn the key & you hear the starter engage but no crank. Cycle the key a few times & it eventually start. I have found a lot of threads about it but no fixes.

Any help is greatly appreciated

Plutoe

I would check the starting relay, your key and or the ignition module and with out the tools we will hear from you around this time next year!!

SC-C230

Does it with both keys. Where's the starter relay located?

cmriv

EIS.

SC-C230

Keys turn no problem

PelicanParts.com

This tech article has some good info on the starter and its issues. Check over the work you did and make sure everything was installed correctly. Just a thought, have you tested the battery? Although your engine provides power to make the vehicle move it still needs an electric starter motor to turn the engine until it runs on its own. Does it sound like it's trying to start, but just isn't getting enough juice to start completely? Can check out this tech article for more info about the battery.

-Luccia

cmriv

Your key can turn with a intermittently faulty eis. The intermittence is its way of telling you its about to fail. Theres a guided test snd LI doc on this issue dating back to 2000 till now. At least you know its not your starter.

sredwine

Procedure for Model 211
1. Perform a visual inspection of the Driver SAM (N10/1) and determine which fuse is installed in socket 59 (Figure 2, arrow). Consult STAR Finder for more information on the location of this fuse (10/1f59).
2. Replace the currently installed 15 Amp fuse with the 20 Amp fuse specified in this DTB.
3. Record the fuse rating change on the vehicle’s Fuse Chart.

Figure 2 P-B-15.30/55a

This can cause intermittent start! Underhood fusebox or SAM.

cmriv

This is also true!!!!!!!!!!!

SC-C230

EIS is dealer only? What's the average cost??

cmriv

not too sure. However it is a diy job if you have basic mechanical skills.....