Q: Temp gauge above half-way line while driving in Mercedes ML 350
Recently bought a 2003 Mercedes ML350 with 140k miles and noticed the temp gauge is teetering between the half-way and 3/4 way point when I drive or when I am idle. I filled the coolant and it's still teetering but less nowadays. Unsure if it's the temp gauge issue, coolant/radiator, or otherwise. It doesn't go above 3/4 line and it hasn't reached that point, but it teeters close to it.
My car has 140800 miles.
My car has an automatic transmission.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
Front engine seal is leaking
Hello, if the front crankshaft seal is leaking, the only way to stop the leak is to replace the seal. The harmonic damper needs to removed for access to the seal. Other parts may have to be removed like the...
Car uses quart of oil every 2 days
Hello. If you are losing oil that fast it is because you have worn out piston rings or valve stem seals. Adding a little oil to the cylinder during the compression test will help you narrow this down. If the...
Can a loose gas cap or driving on really rough roads cause a P0193 error code?
Hi there, thanks for writing in. To answer your question in a simple way: maybe. The P-0193 OBD-II error code (https://www.yourmechanic.com/article/p0193-obd-ii-trouble-code-fuel-rail-pressure-sensor-circuit-high-input-by-jamahl-walker) is as you indicated, a fuel rail pressure sensor circuit issue. This may have been triggered by the aggressive...
My Oil Pressure Light blinks when I come to a stop. What's wrong?
This is likely a sign of low oil pressure, which is usually caused by a leak or low oil levels. I would start by checking your oil to be sure the oil level is at the appropriate capacity. You should...
Nonstop backfiring
Backfiring (https://www.yourmechanic.com/article/what-causes-a-car-to-backfire) occurs when the air fuel charge in a cylinder(s) fires at the wrong moment often when the exhaust valve is opening. There are backfires into the intake manifold, too, however. If during your work on the engine you...
Flashing check engine light after repairs
Hello Stephanie, thank you for writing in. Unfortunately your situation is complicated, and resolution may not be as easy as we would like. Due to the repairs they performed pertaining to the fuel, spark, and cooling system, it is difficult...
Pinging during acceleration
Hi There, Pinging is a result of pre-ignition which means the fuel/air mixture in the cylinder spontaneously explodes, slightly before the spark plug ignites it. There are several things that can cause this to happen. Installing the wrong spark plug...
I am receiving an engine power reduced message on my dash board. Car will still cut on and is driving. I have an 06 Chevy Colbolt
The issue you are writing in about is common enough that a specific diagnostic, namely a Reduced Engine Power Warning Light Diagnostic (https://www.yourmechanic.com/services/reduced-power-light-is-on-inspection) is performed by technicians dispatched by YourMechanic. If you request that diagnostic, the responding certified mechanic will...
Replaced pre-cat with header. Will a 02 simulator make engine light go off!
Hi Brad. Thanks for submitting your question tonight. Unfortunately, when aftermarket alternations are made to a vehicle, our ability to offer accurate repair tips and advice is compromised, as we don't offer tips on aftermarket alterations. You should probably consult...
Related articles
A Buyer’s Guide to the 2012 Mercedes-Benz CLS-Class
The The newly redesigned 2012 Mercedes-Benz CLS-Class has transformed it from a more practical and elegant vehicle to one that is noticeably sporty with a bit more aggression. Designed for the affluent who want both performance and sophistication, while also...
A Buyer's Guide to the 2012 Mercedes-Benz GL-Class
In In the world of full-size SUVs, Mercedes-Benz has made a name for themselves by offering unrivaled luxury in a field where the size of the engine is often the most important metric. While the 2012 Mercedes-Benz GL Class definitely...
Mercedes-Benz Certified Pre-Owned (CPO) Car Program
Shopping Shopping for a used Mercedes-Benz vehicle often leads many drivers to consider certified pre-owned options. Mercedes-Benz is one of many manufacturers that have a certified pre-owned (CPO) program. Each car manufacturer structures their CPO program differently; read on to...
Browse other content
Services
Maintenance