Mercedes-Benz CLS450 Car is hard to start 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

(5,730)

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

(5,730)

Car is hard to start Inspection Service

How much does a Car is hard to start Inspection cost?

On average, the cost for a Mercedes-Benz CLS450 Car is hard to start Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2021 Mercedes-Benz CLS450L6-3.0L Turbo HybridService typeCar is hard to start InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2019 Mercedes-Benz CLS450L6-3.0L Turbo HybridService typeCar is hard to start InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2020 Mercedes-Benz CLS450L6-3.0L Turbo HybridService typeCar is hard to start InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2022 Mercedes-Benz CLS450L6-3.0L Turbo HybridService typeCar is hard to start InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
Show example Mercedes-Benz CLS450 Car is hard to start Inspection prices

A car that is hard to start can be a major inconvenience. While this is usually not a life threatening malfunction, it can make getting around much more difficult. There are a number of issues that will make a car hard to start. Everything from the electrical system to the fuel system to the actual starter itself can be the problem.

Finding the root cause of a hard starting engine can take some investigation. Ignoring a hard starting issue can further damage the vehicle, which will often result in a more expensive repair.

How this system works:

In order to get an engine running, it must be turned at speed so that it starts to suck fuel and air into the cylinders, and then compress and ignite this fuel/air mixture.

The starter motor is an electric motor that turns the engine to get it started. The starter motor has a small pinion gear wheel that engages with a larger gear ring at the rim of the engine flywheel.

The starter motor draws the electric current it needs to run from the battery. The starter needs a heavy current and to avoid sparking a solenoid is used. The ignition switch operates the starter motor. When the ignition is turned on, current is fed to the solenoid and into the starter motor. Once the car engine starts and the key is released, the starter motor turns off.

Common reasons for this to happen:

  • Bad Starter: Over time starter motors can wear out and start to malfunction. If this is the problem the starter will have to be replaced. If the car turns over, the problem is not the starter. If nothing happens when the key is turned the problem could be the starter, or if the car turns over very slowly and the dash lights dim while it is cranking, the starter could be the culprit.

  • Bad Relay Wiring: The wiring between the battery and starter can become loose or broken which will prevent the starter motor from functioning. The wiring will need to be replaced or repaired.

  • Low or Dead Battery: The starter motor needs voltage from the battery to operate. If the battery is low or failing it may not produce enough current for the starter motor to function. Charging or replacing the batter should resolve this problem.

It is also possible that the battery terminals have become corroded or loose. Cleaning and tightening the terminals and cables is recommended.

  • Failing Solenoid: A failing solenoid is a common issue with the starter system and if the solenoid is going bad, the car will be difficult to start. The starter will need to be inspected to determine if the problem is the starter motor itself or the solenoid. A failing solenoid will need to be replaced.

  • Failing Ignition Switch: Over time an ignition switch can start to fail and one of the most common symptoms is that the car is hard to start. If the ignition switch is hot to the touch this indicates an issue with the ignition switch wiring. A failing ignition switch will eventually stop working completely and will need to be replaced.

  • Defective Fuel Pump: If the engine is not getting enough fuel, it will be hard, if not impossible to start. The fuel pump is responsible for pulling gas from the tank to the injectors and if it is not delivering enough fuel the car will be difficult to start and eventually will not start at all.

  • Fouled Plugs: Spark plugs create the spark which allows the vehicle to burn fuel. Fouled plugs are one of the most common reasons for a hard starting engine. As electrodes wear down, the voltage required to jump the gap to ignite the fuel increases. This can lead to prolonged cranking before the engine will start.

  • Clogged Fuel Filter: A fuel filter that is clogged can make a vehicle very difficult to start. The fuel filter screens out contaminants and can become clogged over time. This will prevent the injectors from getting enough fuel, making the car hard to start.

  • Contaminated Fuel: Fuel that has too much alcohol or water in it will result in a car that is difficult and often impossible to start. Even if it does start, contaminated fuel can do serious damage to the engine. If contaminated fuel is suspected, have the vehicle inspected immediately.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the hard to start issue, ​and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The starter, battery, connecting wiring and other important components will be inspected by the mechanic. This may include the vehicle's fuel pump, fuel filter, spark plugs, ignition and more. It may be necessary for the mechanic to crank up the car to verify the problem and issue an accurate diagnosis.

How important is this service?

If a car is hard to start, it's indicative of a major condition preventing normal operation and if left unattended it may lead to the car not starting at all. The vehicle should be inspected and repaired as soon as possible.

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

(5,730)

Rating Summary
5,332
192
54
29
123
5,332
192
54
29
123

Joe

15 years of experience
453 reviews
Joe
15 years of experience
Mercedes-Benz 300TE L6-3.0L - Car is hard to start - Nashville, Tennessee
Joe is now on speed dial:)

Kevin

24 years of experience
554 reviews
Kevin
24 years of experience
Mercedes-Benz CLA250 L4-2.0L Turbo - Car is hard to start - Atlanta, Georgia
Kevin went above and beyond to assist me. He was knowledgeable, quickly diagnosed my car’s problem, and got me back on the road within an hour. If I could give 10 stars I would!

Martin

29 years of experience
166 reviews
Martin
29 years of experience
Mercedes-Benz 300TE L6-3.0L - Car is hard to start - Nashville, Tennessee
One of my better repair experiences.

Alfred

13 years of experience
519 reviews
Alfred
13 years of experience
Mercedes-Benz C300 V6-3.0L - Oil Change - San Francisco, California
service for engine oil and oil filter change. Alfred arrived early and was preparing for oil change. Everything went smoothly. Satisfied.

Excellent Rating

(5,730)

Rating Summary
5,332
192
54
29
123
5,332
192
54
29
123
Number of Mercedes-Benz services completed
63030+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Buy a Good Quality Bumper Protector
Whether Whether you call it a bumper protector or a bumper guard, these automotive accessories offer important protection for your vehicle’s bumpers. They help prevent dings and bumps while you’re parked in a parking lot, while other designs are made...
How to Buy a Good Quality Fuel Filter
Fuel Fuel filters can be considered the final defense to block particles that may be in the fuel from reaching and damaging the engine. Both high-pressure fuel injected systems with either diesel or gas fuel can all have additives or...
How to Check Your Tires for Air Leaks
Your Your tires go through a lot of abuse on the road in order for your ride to be smooth, quiet, comfortable, and safe. Taking care of your tires is essential in order to get as many miles out of...

Car overheating, but fan still runs

Hi. Several things can cause that condition. A stuck closed thermostat, blocked radiator, a faulty water pump, or low coolant all need to be checked. The fans turning on is normal when the engine gets too hot. However, if the...

Is my gas meter broken?

This may be a result of a faulty fuel tanks sending unit. There is a small float type unit inside your fuel tank that monitors the fuel level inside the tank. When this is not working properly, this can cause...

My car is skipping - do I need new spark plug wires?

Old or faulty spark plug wires can definitely be a cause for the engine to misfire, however there are numerous other reasons that may also cause this to happen. Generally, misfires are caused by either a spark or fuel issue...

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