My s320 just this morning decided not to start(I hear the click).
I tried jumping her it does not work.Tried to start in neutral,don't work.
I had tires installed yesterday,but no one under car.What should I check for.

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran,you are a citizen of the world, all peoples are
cousin's, love all life, your love is enternal

I would check battery.....voltage >12v is good, alternator ~14v (13.8-14.5) is good. Then I would move to a little complicated systems like check the crankshaft position sensor. Ooh and check your engine wire harness if it is not brittle if your is more than 15 years old

Good luck

This is a 1999 s320,I checked keys too.

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran,you are a citizen of the world, all peoples are
cousin's, love all life, your love is enternal

Click without turning despite jumping sounds like a starter. Have someone hold the key in "start" while you give the starter a few "love taps" with a broom handle.

__________________

90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff

After charging battery 4 hours and no change in charge level.I popped open maint free caps and found one cell low on water.Refilled it and wham she started.

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran,you are a citizen of the world, all peoples are
cousin's, love all life, your love is enternal

Does this car have a low voltage lockout on the starter??

__________________
All it takes for evil to prevail is for good men to stand by and do nothing.

Too many people tip toe through life, never attempting or doing anything great, hoping to make it safely to death... Bob Proctor

'95 S320 LWB
'87 300SDL
'04 E500 wagon 4matic

probably does to pervent burning out the starter.In all my 30 plus years of experince,I've never seen this.

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran,you are a citizen of the world, all peoples are
cousin's, love all life, your love is enternal

problem was k38 relay,behind fuse area under hood

__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran,you are a citizen of the world, all peoples are
cousin's, love all life, your love is enternal