Mercedes-Benz 300SD Transmission Position Sensor (Switch) Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(7)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(7)

Transmission Position Sensor (Switch) Replacement Service

How much does a Transmission Position Sensor (Switch) Replacement cost?

On average, the cost for a Mercedes-Benz 300SD Transmission Position Sensor (Switch) Replacement is $180 with $85 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 Mercedes-Benz 300SDL6-3.4L Turbo DieselService typeTransmission Position Sensor (Switch) ReplacementEstimate$284.35Shop/Dealer Price$344.19 - $484.34
1992 Mercedes-Benz 300SDL6-3.4L Turbo DieselService typeTransmission Position Sensor (Switch) ReplacementEstimate$264.35Shop/Dealer Price$324.22 - $464.39
Show example Mercedes-Benz 300SD Transmission Position Sensor (Switch) Replacement prices

What is the Transmission Position Sensor (Switch) all about?

Vehicles equipped with an automatic transmission are designed to start only in park or neutral gears. If a vehicle is able to start in reverse or drive gears, it can unintentionally move, causing damage to property or injuries to occupants or bystanders. For this reason, automakers have developed a safety shutdown called a transmission position sensor or range sensor that cuts the power to the starter control circuit if the vehicle is not in park or neutral. This sensor or switch is typically mounted on the side of the transmission and screws into the body of the transmission to detect in which gear the transmission is engaged. If the driver attempts to start the vehicle when the transmission is engaged in a gear other than park or neutral, power is not distributed to the starter circuit. The vehicle will not crank, preventing unintentional vehicle movement. If the transmission position sensor, or range sensor fails, the vehicle may be able to start while engaged in a drive gear.

Keep in mind:

  • Symptoms related to the transmission position sensor mimic those of other common problems.
  • Professional mechanics need to diagnose the symptoms for accurate repair.
  • The transmission position sensor is also commonly referred to as a transmission range sensor.

How it's done:

  • The faulty transmission position sensor switch is identified
  • The vehicle is lifted and supported on jack stands
  • The defective transmission position sensor switch is then removed
  • The new transmission position sensor switch is installed and the vehicle taken off the jack stands
  • The repair is verified and the vehicle is road tested for proper operation

Our recommendation:

While the transmission position sensor is does not require any routine service, as an electronic part, it can fail. If your automatic transmission-equipped vehicle is able to start in a gear other than park or neutral, or if your vehicle will not start when in park or neutral, you may need to replace the transmission position sensor.

What common symptoms indicate you may need to replace the Transmission Position Sensor (Switch)?

  • Engine will not start at all
  • Engine will only start in neutral gear, not in park
  • Engine will start in engaged in drive or reverse gear

How important is this service?

If your vehicle is able to start in gear, there is potential to cause injury to people or damage to property. If the range sensor fails, have it replaced immediately.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(7)

Rating Summary
6
0
1
0
0
6
0
1
0
0

Trevor

22 years of experience
185 reviews
Trevor
22 years of experience
Mercedes-Benz 300SD L5-3.0L Turbo Diesel - Alternator Belt - Encinitas, California
Trevor showed up on time and had the work completed within the estimated time. Professional and friendly. I highly recommend Your Mechanic and Trevor. This was so easy, no up charges or surprises. I will use Your Mechanic for future auto services.

Desmond

20 years of experience
50 reviews
Desmond
20 years of experience
Mercedes-Benz 300SD L5-3.0L Turbo Diesel - Transmission Fluid Service - Seaside, California
Timely ,professional, and a great mechanic for all your automotive needs.

Jim

33 years of experience
187 reviews
Jim
33 years of experience
Mercedes-Benz 300SD L5-3.0L Turbo Diesel - Coolant is leaking - San Ramon, California
Identified the problem immmediately

Rocco

22 years of experience
302 reviews
Rocco
22 years of experience
Mercedes-Benz 300SD L5-3.0L Turbo Diesel - Brake Pads Replacement (Front) - Newport Beach, California
Rocco was fantastic!

Excellent Rating

(7)

Rating Summary
6
0
1
0
0
6
0
1
0
0
Number of Mercedes-Benz 300SD services completed
77+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

Cell Phones and Texting: Distracted Driving Laws in Arkansas
Arkansas Arkansas defines distracted driving as drinking, eating, talking on a cell phone, texting, and talking to passengers. It is considered a serious traffic violation, so if you are caught you will get fined. For drivers under 18 years of...
Veteran and Military Driver Laws and Benefits in Montana
The The state of Montana offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the past, or are current active military members. Many of these benefits require you to...
Top Automotive News & Stories: August 13-19
This week's top auto news: Self driving Ford, Volkswagen security hack, sleek Mercedes-Maybach concept, Audi green light countdown, and more.

Car smokes and loses power

The most common problem is a blown turbo. The shaft bearing and seal may have failed, causing oil to leak into the engine, and come out of the tailpipe as smoke. The turbo bearing may be bad, causing the loss...

Do I need to replace the engine fuse box or is there and easier fix that is less expensive?

The different models for those two years are not interchangeable for fuse box swaps. Your only way to fix the problem is to replace the fuse box (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuse-box) if the pins cannot be tightened up. If you need some assistance...

Back wheels bow out at bottom

Front or rear wheels can bow out for a number of reasons. In alignment terms, we call this negative camber. Camber is the angle of the wheels when looking straight at them from the front or rear. When the tops...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com