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I’m new to the forum, but wanted to say that I’m gonna love getting to know this community. Sooooo much great info just in THIS thread…thank you GOD…😎😎😎
I got these M157 spark plug related docs somewhere on this forum
So no mention of any special procedure for Indexing besides using the factory plugs and the required torque number, right?
Should be up in sticky section---
Do you have instruction to remove the front driver side headrest? IIf you do, can I please have it. Or anyone have it or know to remove it, please let me know. I
broke it myself. How stupid I was! Anyways, I saw some videos for the W12 but the last step for the 2 classes is not the same, The video for W212 does not have the 2 red circle as in my picture.
Attached are many procedures to get you started. Let me know if you need others.
Regards,
Joe
Hey Joe, Can you post the torque Specs for the Axle Bolt as well as the torque specs for the two strut bolts that go to the knuckle. And can you tell me if either of these bolts need to have loctite? VIN IS WDDHF7GB1FB125321
Thanks
Last edited by jongarcia; Oct 26, 2025 at 03:00 PM.
Do you have the procedure to replace the thermostat? I got P012800 error code. I regret not to replace it whenI changed the broken turbo coolant line. It's 4 or 5 years ago and I can't remember how to get there. I remember that turbo coolant lines are very easy to break.I hope I won't break them again this time.Thank you.
Do you have the procedure to replace the thermostat? I got P012800 error code. I regret not to replace it whenI changed the broken turbo coolant line.
It's 4 or 5 years ago and I can't remember how to get there. I remember that turbo coolant lines are very easy to break.I hope I won't break them again this time.Thank you.
That code does points to engine temp issue, not specifically to an open thermostat.
Don't rush to replace your coolant Tstat until it is confirmed bad.
Reset the fault and let the ECU adapt to working with Summer heat.
You can test this easily by holding hot coolant hose after cold start... How soon does it beging warming up: 5, 10, 15, 20mn ??
Oh, maybe its warm in the garage. Fan didnot run outside. Coolant was still cold.
Coolant hose warm after 5 minutes. Engine oil 130, water 195. It took 25 minutes for engine oil reach 176, white.
Oh, maybe its warm in the garage.
Fan did not run outside. Coolant was still cold.
Coolant hose warm after 5 minutes.
Engine oil 130, water 195.
It took 25 minutes for engine oil reach 176, white.
These observations confirm your coolant is warming up your oil through the heat exchanger. Under these conditions Oil was not removing pistons heat.
Your cooling circuit is forced to operate under harsher conditions that may shorten tstat life.
If the fault returns, it will be an indication the Tstat operation is getting marginal at controlling coolant temperature... normal wear & tear maintenance.
When Tstat sticks partially opened it hardly moves either way. Normal operation is smooth.
If the fault confirms under harsh conditions, it's best to service to prevent extreme heat issues. Heat must be well controlled within range.
If your have ECO feature... use sparingly.
Engine Cut Off multiplies heatsoaks from accumulated pistons heat. This creates extreme coolant pressures.
Last edited by CaliBenzDriver; Mar 28, 2026 at 03:41 PM.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
