Car cranking but not turning over

[farhan_s1]

Ive had this is200 for 3 months now and it rough starts when driving alot during the day. The next morning it would start perfectly fine and carry on, the more i drive it that day, the rougher the start up.

Now the car wont start at all. Will keep cranking but not start. Not the Battery as i changed it recently.

took it to a garage who said fuel pump is getting power but not turning on.

 

bought a new pump, sender unit and pressure regulator and car worked fine for about 10 hours. That night it struggled heavily to start up and just about started running. Ill add the video below. Managed to get home but i know its gonna die again.

 

Any idea what it could be i cant think of anything. Ive changed spark plugs to oem ones

[Spock66]

I think spark coil / coil packs is next on the list to check, if you could visibly check you are getting a good spark that would be a good check.

I assume you have checked for fault codes, otherwise maybe an ECU problem.

[farhan_s1]

19 hours ago, Spock66 said:

I think spark coil / coil packs is next on the list to check, if you could visibly check you are getting a good spark that would be a good check.

I assume you have checked for fault codes, otherwise maybe an ECU problem.

Ive changed all 6 spark plugs 2 months ago, if that. And i replaced one of the ignition coils as they rubber boot got stuck causing a slight misfire. Once i changed it misfire went.