BMW 535d 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

(4)

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

(4)

Engine idle speed is high Inspection Service

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

On average, the cost for a BMW 535d 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
2016 BMW 535dL6-3.0L Turbo DieselService typeEngine idle speed is high InspectionEstimate$114.99Shop/Dealer Price$132.49 - $145.62
2014 BMW 535dL6-3.0L Turbo DieselService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
2015 BMW 535dL6-3.0L Turbo DieselService typeEngine idle speed is high InspectionEstimate$94.99Shop/Dealer Price$112.52 - $125.67
Show example BMW 535d 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 BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(4)

Rating Summary
4
0
0
0
0
4
0
0
0
0

James

30 years of experience
877 reviews
James
30 years of experience
BMW 535d L6-3.0L Turbo Diesel - Pre-purchase Car Inspection - Orlando, Florida
James is a really good guy.

Ronald

41 years of experience
307 reviews
Ronald
41 years of experience
BMW 535d L6-3.0L Turbo Diesel - Brake System Flush - Houston, Texas
Loved his work, smile and professionalism. Was on time as stated and job completed on time as promised.

Peter

43 years of experience
1321 reviews
Peter
43 years of experience
BMW 535d L6-3.0L Turbo Diesel - Pre-purchase Car Inspection - Phoenix, Arizona
Great service. Stayed in constant contact through a bumpy process with the dealership.

GARRETT

17 years of experience
29 reviews
GARRETT
17 years of experience
BMW 535d L6-3.0L Turbo Diesel - Brake Pads Replacement (Rear) - Temecula, California
Garrett was professional and reconfirmed what the dealership suggested.

Excellent Rating

(4)

Rating Summary
4
0
0
0
0
4
0
0
0
0
Number of BMW 535d services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

Recent articles & questions

How Long Does a Hazard / Turn Signal Flasher Last
Staying Staying safe when navigating the busy roadways out there can be a lot easier said than done. Most cars have a variety of different systems built in to increase the overall level of safety that a car has. The...
What are the Car Pool Rules in North Dakota?
Car Car pool lanes have existed for a few decades now, and are rapidly growing in popularity. The United States now features more than 3,000 miles of these lanes, and everyday a large number of drivers rely on them, especially...
P3484 OBD-II Trouble Code: Cylinder 11 Deactivation/Intake Valve Control Circuit High
P3484 code means cylinder 11 was deactivated during certain driving conditions due to low oil pressure, engine condition, or electrical components.

I have always used regular 5W-30 Motor oil - should I change to synthetic?

Switching from regular to synthetic oil is not a problem. Your engine will benefit from the better lubrication, temperature resistance, and staying cleaner longer than conventional oils. Switching to synthetic oil (https://www.yourmechanic.com/article/can-you-switch-between-regular-and-synthetic-motor-oil) or even back to conventional oil is not...

I am looking at buying a 2007 VW passat with about 100K miles. Are there any concerns with engine issues for the 2.0T engine

Generally, this is a very reliable vehicle with fairly affordable replacement parts. I would suggest checking the Kelly Blue Book website with specifics related to your zip code as market prices of cars vary by zip code. This will give...

My tail-brake lights are not working, but my top brake light is working, and the taillights are on when the headlights are on

Since the third brake light works your brake light switch is good. This vehicle has a rear brake light out sensor module in the left rear of the trunk that needs to be checked to see if brake signal is...

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