Q: Hello. I accidentally left my 2 liter 1987 mercedes 190E car key on the accessory position in my garage and I will return in a few

asked by on

Hello. I accidentally left the car key of my 2 liter 1987 mercedes 190E (European specs) in the accessory position in my garage and I will return in a few days. Is the battery expected to be drained? Provided that everything (lights, stereo, etc) is turned off. I know newer cars might experience such drain, but a 30 year-old merc isn't that sophisticated, I hope. thnx

My car has 70000 miles.
My car has a manual transmission.

Hello, thank you for writing in. The vehicle’s battery will likely be dead. Even if the vehicle has less electronic components sucking battery power, there are some. Even when the vehicle is off and sits, the clock can drain the battery over enough time. You should not have any other major issues however, and there should not be any immediate cause for concern. The fuel pump pressurizes when in the "On" position, so there may be extra strain being put on the fuel system, but again, there should not be any true consequences to the fuel pump. If it takes a few turns to get the pump to turn on, do not be surprised. Once you return. Turn the vehicle off for a few minutes and give the electronics that may still be active time to power down and rest for a moment. Then be ready to jump start the battery. For more help if other issues do arise, contact our service department.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Hello. I accidentally left my 2 liter 1987 mercedes 190E car key on the accessory position in my garage and I will return in a few

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

Get a quote

What others are asking

Q: What motor oil do you recommend 5w30 or 10w30?

Hey there. Your 190E holds 5.3 quarts or 5 liters. The weight of oil is determined by the average temperature of the climate you live in. If the temperature is above 70 degrees Fahrenheit, I would go with the 10w30,...

Q: Have rapid clicking noise around the transfer case.

Sounds like the shifter solenoid is stuck in a position and will not disengage. Try removing the harness to the shifter solenoid on the transfer case and see if the noise goes away. If it does, then the shifter solenoid...

Q: Battery dies after jump start after turning key off. Battery? Alternator? No dimming lights no dashboard dimming. Battery maybe?

Hello. If the vehicle is running fine as you drive around then the alternator should be fine. This is usually caused by a bad battery. It sounds like it is accepting a jump but it is not accepting charge from...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.