Categories
Blog Diagnostic Tools Mercedes

Mercedes Battery Drain Overnight

  • Why does my Mercedes battery keep dying?
  • What would cause a battery to drain overnight?
  • Do Mercedes have battery problems?
  • How do I find out what’s draining my car battery?
  • How do I stop my car battery from draining overnight?
  • How do you fix a battery drain overnight?

This article will discuss the common causes and solutions for the Mercedes battery drain overnight problem. Mercedes-Benz is a renowned brand that has been providing its customers with high-quality vehicles for over a century. However, like all cars, Mercedes vehicles can sometimes experience issues. One of the most common issues faced by Mercedes owners is the battery drain overnight. This can be a frustrating experience, especially if it occurs frequently.

Understanding the Basics of Car Battery

Before delving into the details of Mercedes battery drain overnight, it is essential to understand the basics of car batteries. A car battery is an essential component of a vehicle, as it provides the electrical power necessary to start the engine and operate the car’s electrical systems. The battery is typically charged while the car is in use and recharged by the alternator.

Symptoms of Mercedes Battery Drain

If you are experiencing a Mercedes battery drain, there are a few symptoms to look out for. One of the most common symptoms is a dead battery in the morning. This can be a frustrating experience, especially if you have to jump-start your car every morning. Another symptom to look out for is an illuminated battery warning light on the dashboard. This light usually indicates that there is a problem with the battery or the charging system. If your battery is going dead, this video may help you diagnose the problem.

Common Causes of Mercedes Battery Drain Overnight

There are several common causes of Mercedes battery drain overnight, and some of the most frequent causes are listed below:

Faulty Alternator

The alternator is responsible for recharging the battery while the car is in use. If the alternator is faulty, it may not recharge the battery properly, which can lead to a dead battery.

Electrical Leaks

If there are any electrical leaks in the car, it can cause the battery to drain overnight. These electrical leaks can be caused by faulty electrical components, such as a faulty battery cable or a faulty alternator.

Short Circuit

A short circuit in the car’s electrical system can cause the battery to drain overnight. This can be caused by a damaged electrical component, such as a faulty fuse or relay.

Parasitic Drain

A parasitic drain is when the car’s electrical system continues to draw power from the battery even when the car is turned off. This can be caused by several things, such as a faulty power antenna, a trunk light that stays on, or a faulty computer module.

Solutions for Mercedes Battery Drain Overnight

If you are experiencing a Mercedes battery drain overnight, there are several solutions that you can try to resolve the issue. Some of the most common solutions are listed below:

Check and Replace the Alternator

If you suspect that the alternator is the cause of the battery drain, you should have it checked and replaced if necessary. This can usually be done by a professional mechanic.

Check for Electrical Leaks

If you suspect that there are electrical leaks in the car, you should have them checked and repaired if necessary. This can usually be done by a professional mechanic.

Check for Short Circuits

If you suspect that there is a short circuit in the car’s electrical system, you should have it checked and repaired if necessary. This can usually be done by a professional mechanic.

Check for Parasitic Drain

If you suspect that there is a parasitic drain in the car, you should have it checked and repaired if necessary. This can usually be done by a professional mechanic.

Conclusion

Mercedes battery drain overnight can be a frustrating experience, but it is a problem that can

Categories
Automotive Repair Videos DIY Auto Repair Mercedes

How to Easily get your Cars Blower Motor Working Again “No Tools Needed”

How to easily tell if the blower motor in your car is bad. this video will also show you how you can get your cars blower motor going again. If tapping on it does not work and your blower motor is not working on any speed you can just go under the dash below the glove box on most cars and unplug the 2 pin connection going to the blower motor to make sure you have 12volt with a multimeter or a test light and if you do that mean your blower motor is bad.

But in most cases just tapping on it can get it going again a lot of the timing. If it does then you know it will need to be replaced because the brushes in the motor are wearing out.

Check out The Flat Rate Mechanics Tool Store on Amazon https://goo.gl/M8MpdC

 

Categories
Check Engine Light Mercedes

P0171 P0172 P2187 Mercedes PCV Valve Replacement ” Running Lean”

Diagnose check engine light. Stored code p2187, p0171, P0174 for system running lean. Smoked intake for vacuum leaks and none found. Found engine vacuum in crankcase due to failed positive crankcase ventilation valve. Crankcase ventilation valve will need to be replaced.

PCV Valve: https://amzn.to/2IznkiY
Crank Case Breather: https://amzn.to/2IznkiY

Engine light is on with fuel trim fault codes and there is an engine knocking noise at times.
Average Reported Mileage: 69772
Tests Procedures: 1. Check for excess crankcase vacuum. Remove the dipstick and connect a vacuum gauge.

2. If vacuum is found, then the pressure regulator valve for the crankcase has failed. See related documents for a picture of the location. Read bulletin LI01.20-P-046639.

3. If no issues are found, then inspect purge valve for being stuck open per bulletin LI47.30-P-049162.

4. Also check for leaking intake per bulletin T-B-09.20/27b.

5. Read bulletin LI09.20-P-061233 and the attached photos for locations of leaks.

6. Verify all recalls and campaigns have been performed.

7. Inspect for incorrect or blocked air filters.
Tech Tips: The pressure regulator valve prevents a vacuum -50 mbar from building up in the crankcase due to the intake manifold vacuum when the gases are extracted from the crankcase. When the crankcase pressure regulator fails, engine oil can get sucked into the combustion chamber.

Categories
Mercedes

Mercedes G550 Air Filter Replacement. Flat Rate Mechanic

Mercedes G550 Air Filter Replacement.
DIY air filter replacement on a Mercedes-Benz G550

Air filter media demonstrate particularly high mechanical stability. By filtering the intake air efficiently and reliably, they allow optimum composition of the air/fuel mix and ensure consistent engine performance.

Air filters lessen intake noise, control temperature regulation and seal off adjacent components.

Improve the gas mileage in your Mercedes G550

According to the U.S. Department of energy, replacing a clogged air filter can improve a car’s gas mileage by as much as 10 percent. Air filters have numerous important functions. They filter destructive particles such as dust, pollen, sand, soot and even drops of water out of the intake air. They ensure that only clean air gets into the combustion chamber.

How does an AIr Filter Protect my Mercedes G550

Air Filters also prevent damage in various ways to electronic components such as highly delicate sensors (hot-film air flow meters). Air  Filters have other important functions like lessening intake noise, control temperature regulation and seal off adjacent components.

I would not recommend using any high flow filters or K&N style filters. It is not recommended. Use good OEM style like the ones below on Amazon.