Mercedes-Benz AMG GT R Engine idle speed is high 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

(5,576)

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

(5,576)

Engine idle speed is high Inspection Service

How much does a Engine idle speed is high Inspection cost?

On average, the cost for a Mercedes-Benz AMG GT R Engine idle speed is high Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
* Mercedes-Benz AMG GT RV8-4.0L TurboService typeEngine idle speed is high InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2018 Mercedes-Benz AMG GT RV8-4.0L TurboService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2019 Mercedes-Benz AMG GT RV8-4.0L TurboService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2020 Mercedes-Benz AMG GT RV8-4.0L TurboService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
Show example Mercedes-Benz AMG GT R Engine idle speed is high Inspection prices

What is engine idle speed and how is it maintained?

Engine idle speed is the speed, measured in revolutions per minute (RPM) an engine is designed to run at when the engine is fully warmed up and the vehicle is stopped in park or neutral. Typically, the idle speed will be set at a value in the range of 600 to 800 RPM, but the exact value will depend on the number of engine cylinders and whether the vehicle is equipped with a manual or automatic transmission. Idle speed is maintained by the throttle body working in conjunction with the vehicle’s powertrain control module.

When to check for idle speed issues:

  • RPM on dash gauge does not match OEM specification. Many cars have RPM gauges. If the engine speed displayed on the gauge does not match the original equipment manufacturer (OEM) specification on the underhood label, there is probably something wrong.
  • Engine is idling higher than normal. If there is no RPM gauge but the engine sounds like it is turning faster when idle, a mechanic can use an instrument to measure the actual engine speed.
  • Harsh engagement in drive. If the idle speed is too high, the vehicle will jump forward when placed in drive.
  • Excessive brake effort is required to hold vehicle at a stop. If idle speed is normal, only a very light force on the brake pedal will be necessary to prevent forward motion in drive.

How do mechanics adjust or repair incorrect idle speed?

The repair procedure depends on the exact cause of the high idle. The below lists common causes of high idle and in each case, the appropriate vehicle system, components, and parts involved would be inspected, removed for repairs, and/or replaced as needed.

Faulty Fuse: In the majority of vehicles, engine idle speed is controlled via an idle control valve (ICV). A faulty or blown fuse in other electronically controlled systems can cause the Idle Air Control (IAC) motor to malfunction, leading to a higher than normal engine idle speed.

Faulty Idle Air Control Valve (ICV): Some cars are equipped with an idle air control valve to maintain idle speed. This part can malfunction due to excessive carbon buildup in the intake manifold.

Vacuum Leak: On any engine, a vacuum leak will cause a high engine idle as the oxygen sensor detects lean operation and the engine computer then tries to compensate, which can result in abnormal idle. Malfunctioning Throttle: A malfunctioning throttle system can cause both a high or low idle as well as an engine stall. A dirty air intake or cracked air intake tube is often the culprit. Computer Malfunction: If the powertrain control module is malfunctioning, idle speed may be affected.

Is it safe to drive with incorrect idle speed?

No. High idle speed could make your vehicle difficult to control and were the idle speed to suddenly and unexpectedly increase to really high levels, you could experience unintended acceleration. Even moderately high idle speed, that is up to 1,200 RPM will make it more difficult to slow your vehicle when stopping and, once stopped, there remains the risk of your foot coming off the brake and the car jumping ahead. High idle speed also wastes gas and can be distracting as the vehicle does not perform as expected.

When addressing idle speed issues, keep in mind:

  • Related functions, such as the idle up function when the air conditioner is turned on, will be inspected by a mechanic during the repair of a high idle problem.
  • Prior to replacing parts, such as the throttle body, the mechanic will also need to rule out electrical causes of incorrect idle speed as well as physical causes such as vacuum leaks.

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

(5,576)

Rating Summary
5,188
189
54
28
117
5,188
189
54
28
117

Larry

16 years of experience
119 reviews
Larry
16 years of experience
Mercedes-Benz C240 V6-2.6L - Loud noise is coming from rear brakes - Columbus, Ohio
Super professional 

Ramon

7 years of experience
114 reviews
Ramon
7 years of experience
Mercedes-Benz CLS500 V8-5.0L - Door Mirror Replacement (Passenger Side) - Los Angeles, California
Went above and beyond and knew exactly what he was doing. Good guy!

Joe

15 years of experience
453 reviews
Joe
15 years of experience
Mercedes-Benz C32 AMG V6-3.2L Turbo - Car is making a noise - Nashville, Tennessee
Joe is very friendly and professional, went above and beyond to address my car service needs.

Travis

13 years of experience
160 reviews
Travis
13 years of experience
Mercedes-Benz CLS500 V8-5.0L - Alternator - Monroe, North Carolina
Travis knew his stuff. I enjoyed his freindly personality. I will have him back for future work. Thanks

Excellent Rating

(5,576)

Rating Summary
5,188
189
54
28
117
5,188
189
54
28
117
Number of Mercedes-Benz services completed
61336+
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 Drag Link
Common signs include uneven tire wear, steering wheel vibration or feeling loose, and unwanted drifting to the left or right.
Symptoms of a Bad or Failing AC Compressor Belt
If the belt has cracking on the ribs, chunks missing, or abrasions on the back or sides, your AC compressor belt may need replacing.
P2197 OBD-II Trouble Code: O2 Sensor Signal Stuck Lean Bank 2 Sensor 1
P2197 code definition O2 Sensor Signal Stuck Lean Bank 2 Sensor 1 What the P2197 code means This code is usually an...

How do I turn on the heated seats?

The heated seats are a luxury feature that heat the front seats. This provides maximum comfort for the driver and the front passenger. To turn on the heated seats, press the heated seat button, which is a picture of a...

Still burning oil - CCV replaced - No smoke at startup/while driving I'm burning through roughly 1 qt. oil every 600-800 miles. Al

Hello. You should start by checking your antifreeze. If your antifreeze is too low, your car could just be compensating for the coolant its missing. I always put 1/2 of a can of Seafoam in my engine before doing an...

Car beep sound while locking and unlocking

Hi there. Since your car is brand new, it is probably best to contact the dealership you purchased the vehicle from to receive a suggestion on how to resolve this issue. To my knowledge however, in previous years Camry's, 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 (855) 347-2779 · hi@yourmechanic.com