What should I do if my Mercedes C300 battery dies?

Smart key not being recognized , vehicle dead need tow truck to dealer very expensive ,had battery but all dead cost $1600. 00 plus on a 72000 mile vehicle. Also front sway stabilizer bar need total replacing (dealer part only) since its making noise.

Are there any problems with the Mercedes C300?

Also please check out the statistics and reliability analysis of Mercedes Benz C300 based on all problems reported for the C300. Eis steering lock battery fail. $12 battery dies and eis stays in lock position key doesn’t respond to ignition switch or car unlocking doors.

How to unlock a car when the battery is dead?

Follow these 3 steps to unlock your car when the battery is dead. Remove the hidden key (Key-less entry) If your car door lock won’t turn, remove the key and check for damage or debris. Using WD40, spray into the door lock and onto the blade of the key. Work the key in and out of the lock and side to side without applying force.

Why does my car battery keep going dead?

Boost starting is the fastest way to get your car up and running but the battery may be faulty and so she may not stay running. See battery testing below. Your car may have a battery parasitic drain and if so this problem will persist, a battery maintainer will help keep the battery topped up but only masks the problem.

What to do when battery drains on Mercedes medic?

Find a way to secure the switch pushed in. Use a screwdriver to lock the door latch. Manually press the door switch. Find a way to secure the switch pressed. Use a screwdriver to lock the door latch. If you have a fuse box in the trunk, open the trunk but place the latch in locked position. Make sure you have a fully charged battery.

What to do when your car battery goes to sleep?

In some models you may need to wait up to 30 minutes for all the electronic systems to go “to sleep”. This will allow the car to shut off any electronic consumers that stay on for a brief period after the car is parked. Locate the battery in the trunk or in the engine compartment.

Can you jump start a Mercedes Benz with a dead battery?

Note: Jump starting a car with a fully discharged battery will shorten the life of the battery or damage the battery. Hint: For a safer method to jump start a Mercedes-Benz with a fully discharged battery see Method 3. Method 2 Jump start your car battery with a booster pack / jump starter box.

What kind of battery does a Mercedes C240 have?

2005 C240 base model. I have had a weak battery (Original i.e. 9yrs old) during cold weather it struggles to start. Its getting cold again I should have bought one sooner but I didn’t. My car did start but was idling low and died (has happened before but usually starts back up) while reversing out of the driveway. It would not restart.

What should current be on Mercedes medic battery?

Connect one test lead to the battery post and the other to the negative battery cable. You should see a current draw of less than 0.1 Ampere or 100 milliamps. If your read is over this value we need to do further troubleshooting. The reading should ideally be under 0.05 ampere. Locate the fuse box in your car. Disconnect the fuses one at a time.

Why does my Mercedes-Benz battery keep draining?

You try to start your Mercedes-Benz and the car is either completely dead or this happens: Battery drains happen when electronic equipment (consumer units) are constantly drawing current from the battery while the car is parked. One simple example is when lights are left on overnight. But it’s not always as simple as that.

Why does my Mercedes medic draw so much battery?

A radio receiver in the car continuously listens for wake up signal from the key. As the car receives a signal in the assigned frequency it wakes up to validate the key. This causes current draw for several seconds. If the car is left parked in high pedestrian traffic areas this could be a problem.

How to jumpstart a Mercedes Benz c300-2009?

How to Jumpstart a 2008-2015 Mercedes-Benz C300 1. Getting Started – Prepare for the repair 2. Open the Hood – How to pop the hood and prop it open 3. Jump Points – Locate the positive terminal and the ground 4. Jump Procedure – Correctly hook up the jumper cables and jump 5.

How old is the battery on a Mercedes Benz?

I drive the car all day, and it’s at 800 by end of day (so the alt is charging the battery). For giggles, took in to advanced to have them test the charge system and they verified the battery and alternator are good. Battery BTW is only 1 month old. But, every morning, the car is completely dead and needs jump started.

What to do if your Mercedes key dies?

If you have a Mercedes-Benz with KEYLESS-GO, you may be wondering how to start the car if the battery in the key dies. Pressing the Engine Start/Stop button does nothing of course if your key fob battery has died. Mercedes key battery has died, and you can’t start your car using the START ENGINE push button.

Is there a hidden key hole in a Mercedes Benz?

Here, we update a demonstration opening and starting a push-button start Mercedes-Benz with a dead key fob battery and a hidden keyhole. This update is a result of a new key fob style introduced in 2017 by Mercedes. The hidden key hole was introduced in 2015 in S- and C-Class models and has been added to other models going forward.

How do you change the battery on a Mercedes?

Instructions on how to change the battery on any Mercedes-Benz key fob can be found here: No programming is required after you replace the key battery. Insert the key in the ignition to start the car once, and the key should function properly including the door lock/unlock feature.

What to do if your Mercedes C300 won’t start?

If you get into your C300, turn the key, and your car doesn’t start (you may hear nothing or a clicking sound from the engine bay), you have a dead battery and need a jump-start. Check to see if you left your headlights or an interior light on and turn the switch off.

Why does my Mercedes tell me to replace the battery?

This morning however the message was “Key not detected” so I had to start the car using the actual key. Then when I restarted the car after driving about an hour it detected the key and I could start the car with the push button, but the message to replace the battery appeared again.

Why is my key fob not working on my Mercedes?

If neither of your key fobs unlocks or starts the car, there’s a good chance that the issue is the car’s battery. Some owners report that their cars failed to start even after a jump start, but a later trip to the dealership indicated a dead car battery.

When to know if your key fob battery is bad?

If you notice that your key remote does not unlock your car, lock your car, or start the engine for those with the automatic start button as early as it should, it’s probably time to replace the battery. 2. Multiple clicks needed to unlock the doors

Why is my car key fob not working?

The battery holds the key for communicating with the relay modules installed in your vehicle. You might at some point notice that the key fob is acting up, like finding it difficult to lock or unlock your vehicle doors. This can be caused by the weak battery in the key fob.

How many times has my Mercedes Benz C300 been towed?

My 2010 C300 has been towed 5 times in 3 years as it won’t start. Today, first warm and humid day – call the tow truck. The dealer has no idea !! 68 people found this helpful. I have experienced the same issue as well.

How to reset a Mercedes Benz after a flat battery?

How to Reset a Mercedes-Benz After a Flat Battery. 1 Step 1. Insert the reset tool into the Mercedes’ data-link connector, which is near the hood-release latch. Turn on the ignition. 2 Step 2. 3 Step 3. 4 Step 4. 5 Step 5.

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