When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Error Code P008792 (Fuel pressure too low) W204 C350 2011
Error Code P008792 (Fuel pressure too low) since 60km occurred and not found yet the problem!! (Changed Fuel Pump, Fuel Filter & Fuel Pressure Sensor that is in fuel filter but didn't help) W204 C350 2011 1313/BTE ... Can someone tell if someone faced same error code and found a way to get rid of?!
I read your screen cap showing 100Bar pressure
with a low pressure fault
at 60k.Km
What engine type: a GDI?
You've replaced in-tank hardware and sensor without improvement.
Let me ask you WHERE the fuel pressure is low?
On the common fuel rail itself, right?
> False low pressure:
How is the engine running??
-- nearly normal ??
-- super bad ??
The answer will help you focus on bad sensor or bad pump.
I side with bad rail sensor.
Confirm this with a dial gauge.
Thanks for your answer!
Engine runs nearly normal but sometimes, not often, is stalling! its CGI motor code: m276.957 (V6 Engine)! I cant find really where exactly where is the Fuel too low coming from!
-- This fault is called directly by the Bosch ECU itself!
-- M276 has a high pressure pump managed directly by the ECU with a pressure control.
-- You can read the pressure sensor under the ECU heading.
> What makes this the fuel rail sensor and not the pump is... the engine runs nearly well.
> While you're fixing your fuel sensor...
-- Do inspect cam sensors for oil leaking in harness
-- and install a set of cheap sacrificial pigtails to prevent $10k repairs
-- Furthermore consider replacing your 2x limp chain tensioners, CPS sensors (inspected above) and upgrading to better oiling. Stock uses low pressure under 3500.Rpm: not good!!!
Better oiling will protect and quiet your HPFP Roller, camshaft lobes and VVT Gears before lick pins start rattling terminally.
Last edited by CaliBenzDriver; Jan 5, 2025 at 11:07 AM.
-- This fault is called directly by the Bosch ECU itself!
-- M276 has a high pressure pump managed directly by the ECU with a pressure control.
-- You can read the pressure sensor under the ECU heading.
> What makes this the fuel rail sensor and not the pump is... the engine runs nearly well.
> While you're fixing your fuel sensor...
-- Do inspect cam sensors for oil leaking in harness
-- and install a set of cheap sacrificial pigtails to prevent $10k repairs
-- Furthermore consider replacing your 2x limp chain tensioners, CPS sensors (inspected above) and upgrading to better oiling. Stock uses low pressure under 3500.Rpm: not good!!!
Better oiling will protect and quiet your HPFP Roller, camshaft lobes and VVT Gears before lick pins start rattling terminally.
Great information that needs to be considered and checked! Thanks
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.
