Mercedes-Benz GL450 Neutral Safety 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

(238)

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

(238)

Neutral Safety Switch Replacement Service

How much does a Neutral Safety Switch Replacement cost?

On average, the cost for a Mercedes-Benz GL450 Neutral Safety Switch Replacement is $309 with $138 for parts and $171 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Mercedes-Benz GL450V8-4.7LService typeNeutral Safety Switch ReplacementEstimate$483.38Shop/Dealer Price$570.48 - $791.29
2009 Mercedes-Benz GL450V8-4.7LService typeNeutral Safety Switch ReplacementEstimate$447.38Shop/Dealer Price$534.52 - $755.34
2011 Mercedes-Benz GL450V8-4.7LService typeNeutral Safety Switch ReplacementEstimate$447.38Shop/Dealer Price$534.51 - $755.34
2010 Mercedes-Benz GL450V8-4.7LService typeNeutral Safety Switch ReplacementEstimate$447.38Shop/Dealer Price$534.47 - $755.27
2008 Mercedes-Benz GL450V8-4.7LService typeNeutral Safety Switch ReplacementEstimate$447.38Shop/Dealer Price$534.54 - $755.39
2007 Mercedes-Benz GL450V8-4.7LService typeNeutral Safety Switch ReplacementEstimate$447.38Shop/Dealer Price$534.51 - $755.34
Show example Mercedes-Benz GL450 Neutral Safety Switch Replacement prices

What is the Neutral Safety Switch all about?

The neutral safety switch keeps the vehicle from starting when in any gear position other than Park or Neutral. In some vehicles, the switch also monitors gear selection and reverse light feedback data for the vehicle’s computer. Most often mounted to the left-hand side of the transmission, the switch is equipped in vehicles with a transaxle or automatic transmission. Some vehicle neutral safety switches are attached to the shifter mechanism.

Keep in mind:

  • Connected to the starter solenoid, the neutral safety switch completes the starter circuit, allowing the power from the battery to reach the starter only while the gearshift remains in Park or Neutral.
  • The mechanic will check the other systems in your vehicle’s ignition system, such as the starter, battery, and alternator, to make sure those parts are not causing the problem.
  • As a vehicle ages, the neutral safety switch deteriorates.

How it's done:

  • The vehicle is raised and supported on jack stands. The transmission shift lever and cable are removed. The electrical connector is removed from the switch.

  • The neutral safety switch is removed from the transmission. The transmission shaft seal is checked for leaks and replaced as needed.

  • The new neutral safety switch is installed on to the selector shaft and secured while aligning for proper installation alignment.

  • The shift lever and shift cable are reinstalled. The vehicle is checked for proper neutral safety switch operation before the vehicle is lowered off the jack stands.

  • The vehicle is scanned for codes and proper switch indication of gear ranges and road tested for proper operation.

Our recommendation:

Replace a faulty neutral safety switch as soon as possible; otherwise, the vehicle will stop working or suffer engine damage. When the switch does not work properly, the vehicle might jump into gear upon startup. This not only causes damage to the engine itself, but poses a great physical threat to surrounding objects and people. Our expert mechanics will diagnose the neutral safety switch to see if it needs adjustment.

Transmissions that exhibit excessive vibrations cause the switch to go out of alignment over time, which makes vehicle ignition more difficult. When inspecting the neutral safety switch, our expert mechanics check for dirt and grease build-up, moisture, and corrosion. They will also use a test light to confirm a connection through the switch to the starter solenoid.

What common symptoms indicate you may need to replace the Neutral Safety Switch?

  • Engine turns over in any gear, indicating that the neutral safety switch does not work properly and needs replacement
  • Vehicle doesn’t turn over when in Park or Neutral
  • Check Engine Light turns on after ignition

How important is this service?

Replace a faulty neutral safety switch promptly, as driving without a functional switch presents a danger to other drivers, passengers, and those around the vehicle. A faulty neutral safety switch damages the engine, as the vehicle jerks into gear upon startup. The reverse lights could stop working on some vehicles, which creates a safety hazard especially during inclement weather or nighttime.

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

(238)

Rating Summary
224
11
1
1
1
224
11
1
1
1

Mario

9 years of experience
55 reviews
Mario
9 years of experience
Mercedes-Benz GL450 V6-3.0L Turbo - Auxiliary Battery Replacement - Torrance, California
Mario was very caring and knowledgeable.

Craig

18 years of experience
56 reviews
Craig
18 years of experience
Mercedes-Benz GL450 V8-4.6L - Power Steering Pump - San Diego, California
Craig was professional and courteous with a call the night before. Change the power steering and the fix works like a champ. I would use Craig again.

Attila

19 years of experience
963 reviews
Attila
19 years of experience
Mercedes-Benz GL450 V8-4.6L - Axle / CV Shaft Assembly Replacement (Driver Side Front) - Morris Plains, New Jersey
Attila was great! He completed the job in under 2 hours, was courteous and very professional. I would absolutely use him again!

Diego

21 years of experience
564 reviews
Diego
21 years of experience
Mercedes-Benz GL450 V8-4.6L - Pre-purchase Car Inspection - Tempe, Arizona
Very please with Diego.

Excellent Rating

(238)

Rating Summary
224
11
1
1
1
224
11
1
1
1
Number of Mercedes-Benz GL450 services completed
2618+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

Insurance Requirements for Car Registration in Florida
The The state of Florida requires that all drivers carry a minimum liability insurance, or “financial responsibility” on their vehicles in order to operate those vehicles legally. The minimum liability insurance required for vehicle owners under this law is as...
How to Figure Out the Gear Ratio of Your Car
You You typically hear people talking about gearing or gear ratios when speaking about muscle cars. Gear ratios can be changed in many vehicles, which can result in a change in the way that your vehicle drives. The gear ratio...
P3443 OBD-11 Trouble Code: Cylinder 6 Deactivation/Intake Valve Control Circuit Low
What What the P3443 code means This code indicates that there is a problem with your intake valve on cylinder number 6. Your vehicle’s control module recognizes that the measured values from the throttle position (TP) sensor, the manifold absolute...

Cylinders misfiring.

Hello - an engine misfire (https://www.yourmechanic.com/question/engine-misfiring_2) can be caused by ignition issues (bad spark plugs, plug wires, coils, or ignition module), or by fuel issues (clogged or leaking fuel injectors). I would recommend an engine misfire inspection (https://www.yourmechanic.com/services/engine-is-misfiring-inspection) by a...

Stalling at cold start, replaced idle air control valve 1990 Chevy P30 6.2 l diesel

Hi - there are a few other component problems that could be causing your poor cold starting (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-glow-plugs). One or more failed glow plugs and air leaks in the air intake will cause poor cold-start and cold-running behavior. I would...

Power train light

Hi There, Code P1450 relates to the EVAP system in your vehicle and us unrelated to the power train malfunction you are referring to. Your car has a small purge valve with a purge solenoid (https://www.yourmechanic.com/services/evaporation-vent-solenoid-replacement) in the Evaporative Emissions...

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