Mercedes-Benz E320 Throttle Body Replacement at your home or office.

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received a Throttle Body Replacement.
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$402.03 - $2,347.62

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Throttle Body Replacement Estimate for Mercedes-Benz E320

Mercedes-Benz E320 Throttle Body Replacement costs $1703 on average.

CarServiceEstimateShop/Dealer Price
2008 Mercedes-Benz E320V6-3.0L Turbo DieselService typeThrottle Body ReplacementEstimate$729.07Shop/Dealer Price$910.81 - $1409.41
1999 Mercedes-Benz E320V6-3.2LService typeThrottle Body ReplacementEstimate$4128.51Shop/Dealer Price$5160.01 - $8208.11
1994 Mercedes-Benz E320L6-3.2LService typeThrottle Body ReplacementEstimate$4571.75Shop/Dealer Price$5714.00 - $9080.15
2000 Mercedes-Benz E320V6-3.2LService typeThrottle Body ReplacementEstimate$4133.51Shop/Dealer Price$5163.85 - $8211.09
2004 Mercedes-Benz E320V6-3.2LService typeThrottle Body ReplacementEstimate$2541.63Shop/Dealer Price$3179.45 - $5039.68
2005 Mercedes-Benz E320V6-3.2LService typeThrottle Body ReplacementEstimate$2541.63Shop/Dealer Price$3174.37 - $5030.79
1996 Mercedes-Benz E320L6-3.2LService typeThrottle Body ReplacementEstimate$4571.75Shop/Dealer Price$5706.82 - $9067.59
2005 Mercedes-Benz E320L6-3.2L Turbo DieselService typeThrottle Body ReplacementEstimate$2557.73Shop/Dealer Price$3192.87 - $5057.33
Show example Mercedes-Benz E320 Throttle Body Replacement prices

Throttle Body Replacement Service

What is the throttle body and how does it work?

The throttle body is an air metering device mounted between the air filter and snorkel, and the intake plenum. Within the throttle body is a movable throttle plate whose position controls the amount of air that enters the engine to determine engine speed. Throttle body designs vary. Some incorporate an idle air control valve, throttle position sensor, and other electronic throttle controls. The throttle plate in the throttle body can be controlled directly by an accelerator pedal cable or fully electronically in the newest drive-by-wire systems.

When to consider replacing the throttle body:

  • Check engine light and/or reduced power warning light is on. Most modern throttle bodies have electrical components, such as a throttle position sensor. These components are monitored by the powertrain control module (PCM). If the check engine light or reduced power warning light comes on, a mechanic will determine if any of the stored trouble codes implicate a throttle body malfunction.
  • Wrong idle speed. Carbon deposits in the throttle body, particularly around the movable throttle plate or in the idle air control valve, can cause the engine idle speed to be too low or too high.
  • Poor transmission shifting. In some applications, transmission shift timing relies on signal outputs from the throttle body. If the throttle position sensor is defective, that might adversely affect shift timing and feel.

How do mechanics replace the throttle body?

  • The engine cover is removed, if necessary.
  • The flexible rubber snorkel from the air filter housing to the throttle body is disconnected. Typically, the connection is made with a large stainless steel hose clamp.
  • The electrical connections to the throttle body are removed.
  • If the throttle body is not a drive-by-wire system, the accelerator cable and cruise control cable are disconnected and set aside.
  • The bolts retaining the throttle body to the plenum, the gasket, and the throttle body are removed. If the throttle body is being cleaned and tested for re-use, approved chemicals are used in the cleaning process.
  • The new or serviced throttle body is re-attached to the plenum and the bolts torqued to factory specifications.
  • All cables and electrical connections are restored. The intake air snorkel is reconnected.
  • If applicable, the electronic throttle installation and idle re-learn procedures are performed using an appropriate scan tool.
  • Finally, the engine is started, brought to normal operating temperature, and idle speed is checked. The car is road tested to ensure normal operation and no illumination of warning or service lights.

Is it safe to drive with a throttle body problem?

Yes. But, the vehicle may be limited in power or put into what is referred to as limp mode, in order to get the vehicle to a repair facility. If the check engine light is on, or the electronic throttle control warning light is on, but there is no noticeable difference in engine performance, the car can be safely driven. However, it is best to have it diagnosed and repaired at your earliest convenience to avoid unexpected breakdown or possible damage to the catalytic converter.

When replacing the throttle body keep in mind:

  • Many modern throttle bodies have spring loaded sensors and plastic gears that are not intended to be manipulated directly during any diagnostics or inspections. These components are controlled electronically or generate signals. It is best to let a mechanic use approved tests to diagnose the problem.
  • Wiring faults, bad grounds, or bad terminal connections can make it appear as though an electronically controlled throttle has failed. A mechanic will always rule out all other causes before replacing the throttle body.
  • When cleaning the throttle body, special care should be taken to use only special spray cleaners designed to not damage electrical components or sensors.

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Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating


YourMechanic Mercedes-Benz E320 Service

Average Rating

4.8/5

Number of Reviews

252

Rating Summary
232
7
4
2
7
232
7
4
2
7

Chet

39 years of experience
440 reviews
Chet
39 years of experience
Mercedes-Benz E320 - Car starts and then dies - Chula Vista, California
At first when he showed up, he looks tired already considering it was a late appointment. He looked at the car, opens up the hood and check the transmission fluid. Then after checking the fluid, he made a recommendation to use the Blue Devil Sealer for the transmission. He said to pour it in the transmission and it should take care of the problem. I was surprised that it was that quick to diagnose the problem of the car without actually testing the car. Then he made some recommendations that if I need new transmission then I can go to The junkyard. It seemed to me that he is trying to prolong the conversation to make it to an hour and then he gets paid $99. I asked him when are you going to inspect the and test the car and when he noticed that I was getting frustrated already and I told him to do his job. And that’s when he actually inspected the car. After 30 mins. he called me and explained to me the problem of the car. He said that the Blue Devil Sealer is not going to work because the main problem is the actual transmission itself. Then he made his recommendation to either purchase another transmission from the junkyard or just sell the car and get a used one with low mileage in it. I was glad that he explained to me the real problem of the car after our not so pleasant discussion earlier. I would still recommend his service but you just have to be upfront with him.

Michael

9 years of experience
98 reviews
Michael
9 years of experience
Mercedes-Benz E320 - Oil Change - Basking Ridge, New Jersey
On time, courteous and professional. Highly recommend!

Jimmy

27 years of experience
186 reviews
Jimmy
27 years of experience
Mercedes-Benz E320 - Check Engine Light is on - Charlotte, North Carolina
Although we could not any codes Jimmy tried to run my car around to replicate my descripion of my car problem. We could not the problem to reoccure,but we tried.

Todd

24 years of experience
95 reviews
Todd
24 years of experience
Mercedes-Benz E320 - Oil Change - Williamsburg, Virginia
Very knowledgeable and nice.

Excellent Rating


YourMechanic Mercedes-Benz E320 Service

Average Rating

4.8/5

Number of Reviews

252

Rating Summary
232
7
4
2
7
232
7
4
2
7
Red-stars EXCELLENT RATING ON
Number of Mercedes-Benz E320 services completed
2772+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
800+
experts on our platform

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