Information - Throttle

The throttle is one of the most important elements of the intake systems of internal combustion gasoline engines. The throttle valve is necessary in order to regulate the amount of air that enters the engine for the formation of fuel-air mass.

Throttle valve is located in front of the intake manifold. The functioning concept of the throttle valve is very simple - the more the damper opens, the greater is the outlet cross section per unit time, respectively, more air goes through into the intake channel. More air means consequently, more fuel. The more fuel-air mixture there is in the combustion chamber, the higher power is generated.

The driver regulates the opening and closing of the throttle, every time he presses the gas pedal. The gas pedal is connected to the throttle. When the gas pedal is pressed, the throttle opens. The more pressing on the pedal, the more the throttle opens. If the pedal is pressed all the way, the throttle remains maximally opened. This is one of the few parts in a car that do not need a lot of attention. Basically, this part can last the entire period of its operation. However, while driving the throttle may get dirty. In time, dark oil stains appear on the walls of the throttle body, on the throttle itself and in its internal channels. There may be several causes of throttle pollution. The worst of them is the oily dust penetrating from under the valve cover through gases ventilation tube.

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What you need to know about throttle valve replacement: lifetime limits, common defects and their signs, tips and recommendations

Throttle valve service life is not specified. It is replaced because of mechanical damages of the spindle, housing or return spring. The component breakdown can also be caused by the deposit which formed on it during car exploitation. In case of heavy soiling throttle valve cleaning can’t remove the problem: the component is to be replaced. The electromotor, drive and gears can break down in components with electric drive.

“Check Engine” indicator on the dashboard points at throttle valve defect. Unstable rpm at idle and jerks during driving may also indicate breakdown. Moreover, the engine can stall or start with troubles.

You can define throttle valve defects by computerized diagnostics at a service station. Replacement of the component is also recommended to be entrusted to professionals because demounting requires laborious removal of the throttle valve pipe. For this the air filter housing is demounted, then the throttle position sensor and the idle air control sensor are removed, the retaining bracket or screws are removed as well. Then the throttle valve gasket and the throttle valve itself are demounted. Unit assembly is performed in the reverse order.

Throttle body at low cost: Top Spares

Throttle body with seal (RIDEX, 158T0015) -23%
Throttle body | RIDEX 158T0015 Article №: 158T0015
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£ 107,49
£ 82,77
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Over 100 items in stock
  • Height [mm] 72
  • Voltage [V] 12
  • Number of connectors 5
  • Operating Mode Electric
  • Supplementary Article/Supplementary Info with seal
  • Weight [kg] 0,608
  • Condition  New
Details
Throttle body CBAB (RIDEX, 158T0024) -23%
Throttle body | RIDEX 158T0024 Article №: 158T0024
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£ 83,54
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Over 100 items in stock
  • Diameter [mm] 48
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  • Operating Mode Electronic
  • Number of connectors 5
  • Condition  New
Details
Throttle body with seal (FEBI BILSTEIN, 46130) -23%
Throttle body | FEBI BILSTEIN 46130 Article №: 46130
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Over 100 items in stock
  • Height [mm] 81
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  • Number of connectors 5
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  • Weight [kg] 0,647
  • Condition  New
Details
Throttle body (ERA, 556152A) -23%
Throttle body | ERA 556152A Article №: 556152A
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  • Number of connectors 4
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Throttle body AUA; BBY (SWAG, 30 10 3796) -23%
Throttle body | SWAG 30 10 3796 Article №: 30 10 3796
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  • Length [mm] 80
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  • Material Steel
  • Weight [kg] 0,007
  • Condition  New
Details
Control Flap, air supply with seal (VDO, A2C59514304) -23%
Control Flap, air supply | VDO A2C59514304 Article №: A2C59514304
VDO Control Flap, air supply A2C59514304
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  • Diameter [mm] 48
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Throttle body without gasket / seal, with accessories (VDO, A2C59513208) -23%
Throttle body | VDO A2C59513208 Article №: A2C59513208
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  • Observe the vehicle manufacturer specifications
  • Condition  New
Details
Throttle body with gaskets/seals, ORIGINAL PART (VALEO, 700440) -23%
Throttle body | VALEO 700440 Article №: 700440
VALEO Throttle body 700440
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  • Exhaust Emission Norm Euro 5
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  • Operating Mode Electric
  • Weight [kg] 0,64
  • Supplementary Info ORIGINAL PART
  • Condition  New
Details
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