Mercedes-Benz ML320 Rear lights are not working Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(125)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(125)

Rear lights are not working Inspection Service

How much does a Rear lights are not working Inspection cost?

On average, the cost for a Mercedes-Benz ML320 Rear lights are not working Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeRear lights are not working InspectionEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2009 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1999 Mercedes-Benz ML320V6-3.2LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2000 Mercedes-Benz ML320V6-3.2LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.48 - $125.60
2001 Mercedes-Benz ML320V6-3.2LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.55 - $125.72
2002 Mercedes-Benz ML320V6-3.2LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1998 Mercedes-Benz ML320V6-3.2LService typeRear lights are not working InspectionEstimate$99.99Shop/Dealer Price$117.28 - $130.25
2007 Mercedes-Benz ML320V6-3.0L Turbo DieselService typeRear lights are not working InspectionEstimate$99.99Shop/Dealer Price$117.94 - $131.39
Show example Mercedes-Benz ML320 Rear lights are not working Inspection prices

Rear lights or tail lights, are an important safety feature on your vehicle, especially when driving at night or in bad weather. These lights let other drivers know where you are on the road and illuminate brighter to indicate when you are braking. When rear lights fail, not only can it be dangerous for you and other drivers, it can also result in a citation from a police officer. If you notice an issue with your rear lights, you should have it inspected immediately.

How this system works:

During the day time, or when the headlights are off, rear lights only illuminate to indicate when a driver is braking. At night, or when the headlights are turned on, the rear lights illuminate constantly to let other drivers know where you are, and illuminate brighter when braking. Your rear lights are controlled through the same switch that controls the headlights. Power is channeled through a relay to the rear lights, illuminating them when the switch is engaged. A brake light switch, which is typically connected to the brake pedal, illuminates the brighter brake lights when the brake pedal is pressed.

Common reasons for this to happen:

  • Blown Fuse: As a first resort, a mechanic should expect the corresponding fuse for your rear lights. When a fuse blows, it prevents the circuit from completing, in this case preventing the rear lights from illuminating. Sometimes when a taillight lens cracks or breaks, it can allow moisture to enter the lens and cause a short circuit, blowing the fuse.

  • Burned Out Bulbs: In the case where only one of your rear lights appears to be out, the cause is most likely a burned out bulb. When the filament breaks inside a bulb, it cannot illuminate the gas inside the bulb. A burned out bulb will not affect the circuit of the entire rear light system, and the other rear light should continue to function normally.

  • Bad relay: A relay transfers power from the battery to the lights themselves, but when a relay fails, the connection is unable to be completed. A relay may also fail because it is not grounded properly. A wire that is not grounded properly is unable to protect the circuit and provide an outlet for excess charge that build up. A vehicle with a bad relay or bad ground may not be able to successfully power your rear lights.

  • Bad Brake Light Switch: If the rear lights illuminate normally but do not become brighter when braking, the brake light switch may not be functioning properly. The brake light switch circuit is completed when the brake pedal is pushed, but if the switch has been pushed out of place or is not connecting properly, the brake pedal may not be able to complete the circuit, meaning that the lights will not illuminate.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine why your tail lights have failed. The mechanic will then provide a detailed inspection report outlining the nature of the failure and the cost of any repairs that need to be made

How it's done:

When checking electric components on your vehicle, especially, fuses and relays, the mechanic will bring a multimeter which will help him or her diagnose what specific component has failed. The mechanic will begin by examining the back of the car for any superficial damage like broken tail light covers, and loose, or frayed wiring. If there is no superficial damage, the mechanic will then begin to examine the different components along the electrical circuit.

The mechanic will begin inspecting the various electrical components of the vehicle by looking at the fuses. If he or she suspects a blown fuse, they will remove the corresponding fuse for the tail lights to see if it is blown. If so, the mechanic will then replace it with a fuse appropriately rated for the amperage.

If only one of the tail lights appears to be out, the mechanic should check to see if the unlit bulb is burned out. Over time, bulbs will eventually fail and need to be replaced. The mechanic will check the filament in the unlit bulb to see if it is broken. If so, he or she will replace the bad bulb with a new one.

If the bulbs and fuses appear to be working properly, the mechanic will then check the corresponding relay for the tail lights. Using a multimeter, the mechanic can check the resistance of the relay. If it is not functioning properly, the mechanic will replace it and rewire it to the existing connections.

If the tail lights seems to be functioning properly, but the brake lights are not working, the mechanic should inspect the brake light switch. If the brake light switch is not responding to the brake pedal, the mechanic will remove the old switch, replacing it with a new one. The mechanic should then check to make sure that the brake lights are working and responding to the new switch.

In the case of any repair, the mechanic will make sure that he or she completes the necessary repairs and ensure the functionality of your new components. In the event that an issue with the taillights has triggered an error code, the mechanic will use a code reader/scanner to clear the code and its corresponding light.

How important is this service?

Tail and brake lights are designed to help other drivers see you on the road and if they are not working, you may be at an increased risk for an accident. A police officer may also cite you for not having functioning tail lights in the event you are pulled over. If you notice your tail lights have gone out, or are not working properly, you should stop driving the car and have it inspected by a mechanic.

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

(125)

Rating Summary
114
7
1
1
2
114
7
1
1
2

Dan

39 years of experience
976 reviews
Dan
39 years of experience
Mercedes-Benz ML320 V6-3.2L - Car is not starting - Roswell, Georgia
Dan was on time, thorough and professional. After checking all fuses and potential power drains and charging my battery, he cleaned the battery terminals and got me up and running. He took the time to take a closer look at a radiator leak that began after the car was running. He is clearly very knowledgeable.

James

31 years of experience
690 reviews
James
31 years of experience
Mercedes-Benz ML320 V6-3.2L - Oxygen Sensor Replacement (Front/Upper/Upstream, Rear/Lower/Downstream) - Irvine, California
Very knowledgeble and professioal.

Chris

18 years of experience
492 reviews
Chris
18 years of experience
Mercedes-Benz ML320 V6-3.0L Turbo Diesel - Battery Light is on - Katy, Texas
Great

Stefan

17 years of experience
367 reviews
Stefan
17 years of experience
Mercedes-Benz ML320 V6-3.2L - Oil Change - Fremont, California

Excellent Rating

(125)

Rating Summary
114
7
1
1
2
114
7
1
1
2
Number of Mercedes-Benz ML320 services completed
1375+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Headlamp Dimmer Switch
If you can't remain on high beams or switch between low and high beams, you may need to replace the headlamp dimmer switch.
The Traveler’s Guide to Driving in Colombia
Colombia Colombia is a paradise for many people looking for a fun and interesting vacation. You will likely want to spend some time in Bogota. The La Candelaria is the colonial part of the city center, and you can see...
How to Perform a Basic Tune-Up
Knowing how to tune up your car is an important skill. You don't need to be a pro mechanic to check your car fluids, air filter, battery, or tires.

Car loses speed while driving.

Hi there. Check the battery cables (https://www.yourmechanic.com/services/service-battery-cables) and make sure that they are tight. Also, check the connections from the alternator to the battery. If the power wire from the alternator is loose, then the battery light will come on...

89 Dodge Ram 100 is a plug on the back of the throttle body that I has a vacuum line I need to know where it goes to it is not on

Hi Ken. Thanks for contacting us tonight. It would be very difficult to try and document where the vacuum line attaches without images or video to show you. Since we can't attach documents to this platform, your best option is...

Looks like on the top back near the firewall on the motor the park neutral safety switch broke how do I go about replacing that or can I fix it

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