Mercedes-Benz 300SEL 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

(5)

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

(5)

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 300SEL 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
1973 Mercedes-Benz 300SELV8-4.5LService typeRear lights are not working InspectionEstimate$114.99Shop/Dealer Price$132.49 - $145.62
1963 Mercedes-Benz 300SELL6-3.0LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1990 Mercedes-Benz 300SELL6-3.0LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1988 Mercedes-Benz 300SELL6-3.0LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.48 - $125.60
1965 Mercedes-Benz 300SELL6-3.0LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.55 - $125.72
1966 Mercedes-Benz 300SELL6-3.0LService typeRear lights are not working InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
1972 Mercedes-Benz 300SELV8-4.5LService typeRear lights are not working InspectionEstimate$99.99Shop/Dealer Price$117.28 - $130.25
1989 Mercedes-Benz 300SELL6-3.0LService typeRear lights are not working InspectionEstimate$99.99Shop/Dealer Price$117.94 - $131.39
Show example Mercedes-Benz 300SEL 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

(5)

Rating Summary
5
0
0
0
0
5
0
0
0
0

Robert

17 years of experience
28 reviews
Robert
17 years of experience
Mercedes-Benz 300SEL L6-3.0L - Drive Belt Tensioner - Newtown Square, Pennsylvania
Robert has a positive attitude and is very professional. He got my vintage (ancient?) Mercedes all patched up and running again. I would definitely recommend Robert without hesitation!

Chris

11 years of experience
71 reviews
Chris
11 years of experience
Mercedes-Benz SLK350 V6-3.5L - Rear lights are not working - Ogden, Utah
Very friendly and professional.Liked how he does a step by step trouble shooting to the problem.

Lavell

28 years of experience
262 reviews
Lavell
28 years of experience
Mercedes-Benz C300 V6-3.0L - Rear lights are not working - Emeryville, California
Very nice and professional

Todd

26 years of experience
95 reviews
Todd
26 years of experience
Mercedes-Benz S430 V8-4.3L - Rear lights are not working Inspection - Hampton, Virginia
Good

Excellent Rating

(5)

Rating Summary
5
0
0
0
0
5
0
0
0
0
Number of Mercedes-Benz Rear lights are not working Inspection services completed
55+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

What are the Car Pool Rules in Delaware?
While While Delaware roads are best known for their rural, backroad, scenic routes (https://www.yourmechanic.com/article/top-10-scenic-drives-in-delaware), the majority of Delaware drivers have to travel on the state’s large freeways on a day-to-day basis. Many of these freeways have carpool lanes, which vehicles...
P0698 OBD-II Trouble Code: Sensor Reference Voltage “C” Circuit Low
P0698 means there is an irregular voltage level or connectivity problem relating to the electrical circuitry due to faulty wiring or connections.
How to Replace a Door Striker Plate
A door strike plate is a metal hook or bolt that keeps the door tightly shut. Once it's damaged or worn, the plate can jam or not hold as well.

Car won't start even after I replaced the fuel pump.

If the fuel pump has been replaced and your issue is still fuel related you may have a clogged fuel filter or malfunctioning fuel injectors. If all of these parts are known to be functioning properly the issue is likely...

Cruising steadily, loss of acceleration, and engine cutting out

Hi there. One of the most common issues with early 90's diesel engines (https://www.yourmechanic.com/article/how-does-a-diesel-engine-work-by-jason-unrau) are the fuel injection pump's o-ring (https://www.yourmechanic.com/services/fuel-injector-o-rings-replacement) can dry out or crack overtime causing fuel pressure and delivery issues. Although it's possible to rebuild the fuel...

When I try to start my truck, the lights work but no crank.

First, we need to make sure the signal wire to the starter is properly connected and the power cables are attached properly. I have seen many situations where the signal wire is loose or the connector is broken and the...

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