Tech Tip: Mercedes-Benz Engine Dies When Transmission Is Shifted Into Gear – UnderhoodService

Tech Tip: Mercedes-Benz Engine Dies When Transmission Is Shifted Into Gear

You may encounter a Mercedes in which the engine dies when the transmission is shifted into gear or when parking. Damage code 27 205 47 is also present.

You may encounter a Mercedes in which the engine dies when the transmission is shifted into gear or when parking. Damage code 27 205 47 is also present.

Affected models include those with the 140 chassis and engine 104.###, 119.### and 120.### #2 as of May 1, 1991.

The cause of the problem is moisture (corrosion) in the connector for the starter lockout switch/transmission wiring harness.

Repair Procedure
1. Check the starter lockout switch for corrosion.
2. Replace the starter lockout switch if it’s corroded.
3. Replace the transmission wiring harness.

Technical service bulletin courtesy of ALLDATA.

For additional information, visit www.alldata.com.

You May Also Like

Check The TSBs!

With the complexity of today’s modern vehicles, as technicians, we are going to have to stay on top of our game.

Over the last 28 years of being a technician, I have developed the habit of checking for and reading technical service bulletins at the forefront of the diagnostic process, especially when an unfamiliar vehicle exhibiting blatant or straightforward concerns comes into the shop. I have found many valuable nuggets of information while reading over these bulletins, from wiring concerns and connector issues, to transfer noises, water leaks, and engine and transmission performance concerns. The knowledge gained in reading through these bulletins has not only helped me with the vehicles I’m working on, but also increased my perspective and ability to connect the dots on other vehicles that don’t pertain to a current bulletin.

HVAC Heat Pumps

In theory, heat pumps can be three to four times more energy-efficient than conventional electric heaters.

AMN Drivetime: Cal Ganda’s Continental Journey

Ganda embodies servitude leadership, prioritizing team success and customer-centricity.

Auxiliary Water Pump Diagnostics

A car or truck comes into your shop with a complaint of poor heater performance- the issue may be the auxiliary water pump.

Misfire Codes P0300, P0301-P0312 and P0313+P0314

The only way to clear the code is to use a crankshaft position relearn with a scan tool.

Other Posts

Eaton to Supply ELocker Differential System to EV Manufacturer

The system leverages an electric motor to power the rear wheels and an electric motor or an optional ICE driving the front wheels.

Replacing Your Power Steering Reservoir

Discover why simply flushing out contaminants from power steering reservoirs may not be sufficient to prevent potential failures.

What Caused The Turbo To Fail?

Up to 50% of turbocharger failures are due to oiling problems.

Eli Opens Reservations for its Micro-EV in the US

The new Eli ZERO represents a new category of high-tech, efficient and sustainable micro-EVs, according to Eli Electric Vehicles.