Mercedes-Benz GL450 Car jerks forward at high speeds 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

(233)

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

(233)

Car jerks forward at high speeds Inspection Service

How much does a Car jerks forward at high speeds Inspection cost?

On average, the cost for a Mercedes-Benz GL450 Car jerks forward at high speeds Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2009 Mercedes-Benz GL450V8-4.7LService typeCar jerks forward at high speeds InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2012 Mercedes-Benz GL450V8-4.7LService typeCar jerks forward at high speeds InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2013 Mercedes-Benz GL450V8-4.7L TurboService typeCar jerks forward at high speeds InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2015 Mercedes-Benz GL450V6-3.0L TurboService typeCar jerks forward at high speeds InspectionEstimate$94.99Shop/Dealer Price$112.48 - $125.60
2007 Mercedes-Benz GL450V8-4.7LService typeCar jerks forward at high speeds InspectionEstimate$94.99Shop/Dealer Price$105.02 - $112.55
2008 Mercedes-Benz GL450V8-4.7LService typeCar jerks forward at high speeds InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2010 Mercedes-Benz GL450V8-4.7LService typeCar jerks forward at high speeds InspectionEstimate$99.99Shop/Dealer Price$109.87 - $117.28
2016 Mercedes-Benz GL450V6-3.0L TurboService typeCar jerks forward at high speeds InspectionEstimate$99.99Shop/Dealer Price$117.94 - $131.39
Show example Mercedes-Benz GL450 Car jerks forward at high speeds Inspection prices

When traveling at high speed, it can be particularly unsettling when your vehicle starts to jerk or surge forward without warning. Jerking or surging can be a sign of a number of different issues, each with its own ease and cost of repair. Specificity with regards to the handling of the vehicle at higher speeds, throttle responsiveness, and unusual noises, can help a mechanic better identify your vehicle’s specific problem.

How this system works:

When a vehicle receives an inconsistent or unbalanced flow of air and fuel, it will not run properly. An indication that a vehicle is not receiving the right mixture of air and fuel is if the vehicle jerks or surges forward at high speed. Several components of the fuel or air intake system could cause this jerking or surging sensation to happen. Issues within these systems can also cause fuel economy to worsen.

Common reasons for this to happen:

  • Failing Mass Airflow Sensor: The mass airflow sensor measures how much air is entering the engine and relays this information to the vehicle’s computer so the right amount of fuel can be delivered from the fuel injectors. When a mass airflow sensor begins to fail, it will typically generate an error code that triggers the Check Engine light. This warning may be accompanied by an unexpected jerking or surging sensation while driving at high speed. A vehicle with a failing mass airflow sensor may also stall soon after starting.

  • Engine Vacuum Leak: Your engine uses vacuum lines to help the computer calculate the necessary position of the fuel injectors, ensuring an appropriate fuel/air mixture. A vacuum leak may cause the engine to run inefficiently and the computer to generate an error code. A vehicle suffering from a vacuum leak may jerk while at high speed and may also struggle to idle.

  • Fuel Pump Malfunction: A vehicle’s fuel pump is responsible for moving gasoline from the fuel tank to the engine where it can be mixed with oxygen to run the engine. When a fuel pump begins to fail, it may struggle to consistently deliver the correct amount of the fuel to the engine. The fuel pump may dramatically increase pressure while failing, creating a jerking or surging sensation.  Your vehicle may also be sluggish and struggle while driving uphill or towing.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the reason for the sudden jerking or surging sensation. The mechanic will then provide a detailed inspection report outlining the cause of jerking sensation and the cost of any repairs that need to be made.

How it's done:

A mechanic will first check your vehicle by plugging in a code reader/scanner into the vehicle’s computer. The computer should be able to provide the mechanic with a better picture of what specific part or parts are failing.

If your vehicle has a bad or failing mass airflow sensor, the mechanic will begin by finding the sensor in the engine bay and checking for any signs of failure. The mechanic will check the wire harness connected to the sensor to ensure that all of wires are properly connected. After removing the sensor, the mechanic should be able to discover the nature of the failure and replace the sensor.

In order to check for a vacuum leak, the mechanic will examine the vehicle’s vacuum hoses and gasket. If he or she finds the source of the leak, the mechanic will replace the failed components and start the engine to make sure the leak has been fixed.

To check a bad fuel pump, a mechanic may have to remove the gas tank. Many modern cars have electric pumps located inside the gas tank. The mechanic will examine the fuel pump to see if it is the cause of the poor performance and jerking sensation. If it is the culprit, the mechanic will replace it and reinstall the gas tank, if necessary.

In all cases, your mechanic will make the necessary repairs and start the engine to ensure that it is now running properly. Once the repairs are completed, the mechanic can use the code reader/scanner to remove error codes and turn off the Check Engine light.

How important is this service?

A car that surges or jerks at high speed is potentially dangerous, especially in heavy traffic or in bad weather. If your vehicle jerks at high speed, you should stop driving it and have it inspected by a mechanic. Because many of the issues that would cause this jerking sensation also trigger a warning lights, being diligent and having a mechanic inspect a vehicle with a warning light can help limit potential damage and avoid more costly repairs.

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

(233)

Rating Summary
219
11
1
1
1
219
11
1
1
1

Theodore

16 years of experience
1592 reviews
Theodore
16 years of experience
Mercedes-Benz GL450 V8-4.6L - Pre-purchase Car Inspection - Kirkland, Washington
Arrived early and provided useful insights and detailed service

Ostus

8 years of experience
70 reviews
Ostus
8 years of experience
Mercedes-Benz GL450 V6-3.0L Turbo - Oil Change - Atlanta, Georgia
On time, professional and very knowledgeable mechanic. Would recommend and will be re-booking for future services!

Charles

4 years of experience
116 reviews
Charles
4 years of experience
Mercedes-Benz GL450 V8-4.6L - Battery - Nashville, Tennessee
Great experience.

Raul

34 years of experience
285 reviews
Raul
34 years of experience
Mercedes-Benz GL450 V8-4.6L - Brake Pads Replacement (Front) - Palo Alto, California

Excellent Rating

(233)

Rating Summary
219
11
1
1
1
219
11
1
1
1
Number of Mercedes-Benz GL450 services completed
2563+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

A Buyer’s Guide to the 2012 Audi Q7 TDI
If If you’re looking for a luxury crossover that has all the high-end amenities and plenty of power and fuel economy, you’ve found it in the 2012 Audi Q7 TDI. Fans of the Q7 will immediately recognize the overall look...
The Guide to Right-of-Way Laws in New Jersey
Most Most traffic accidents in the state of New Jersey occur when one motorist fails to yield the right of way to another, or to a pedestrian. Common sense dictates that you should do everything you can to avoid an...
The Traveler’s Guide to Driving in Turkey
Turkey Turkey has a fascinating culture and a rich history, and as such, it can be a fantastic place to take a vacation. You will find countless sites to visit (http://opentravel.com/Things-To-Do-In-Turkey-Attractions) and explore. Some of the most popular include the...

How do I adjust the rearview mirror?

The rearview mirror is an extremely important safety feature that provides you with visibility through your rear window. Before driving, you should always adjust your rearview mirror so that you have maximum visibility. You can adjust the mirror manually, by...

Accelerating doesn't produce increase in RPM

The throttle opening is controlled by the engine computer (https://www.yourmechanic.com/article/what-is-a-vehicle-s-electrical-control-unit) and if the computer sees a problem in the system it will limit the throttle opening. You need to have the computer tested to see the codes that can cause...

Clear liquid is leaking from the right side of the car, where could this be coming from?

It sounds like you may have an axle seal (https://www.yourmechanic.com/services/axle-shaft-seal-replacement) leaking. This may or may not have been caused by the axle replacement, or the seal could simply be hard and brittle. Any seal can become hard and brittle over...

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