The throttle valve is a key component in an engine intake system on a vehicle, as it directly affects the vehicle's idle stability, throttle response, and overall power output.

This article provides an in-depth technical analysis of the A6510900370 throttle valve, examines the root causes of its common failures, and describes in detail how the vika STO throttle valve fundamentally solves the common failures of OE parts.

Common failure symptoms of A6510900370 throttle valve

1. The engine idle is unstable, or the idle speed is too high or too low.

2. The vehicle has a slow or jerky response during acceleration.

3. The engine malfunction indicator is on, and the power output is limited.

Why do OE throttle valves fail frequently?

To provide a fundamental solution, we must first understand the underlying logic of the failures of OE parts.

1. Carbon deposition and sludge sticking: Carbon particles and sludge originating from the exhaust gas recirculation (EGR) system and other engine systems gradually build up on the inner surfaces and throttle plate of the throttle valve, eventually causing the plate to stick and preventing smooth opening and closing.

2. Sensor failure: Wear, poor contact, or signal drift of the position sensor can prevent the ECU from accurately reading the throttle plate angle.

3. Aging motor or gear: The motor and transmission gears inside the throttle valve will wear and age over time.

vika’s throttle valve solution: solving OE failures

The vika STOthrottle valve was developed by comprehensively optimizing the original design and fully addressing the quality issues of OE products. Through upgrades of sensor and material process, vika delivers a product with a longer service life and higher performance than OE products.

Sensor:

vika: The non-contact Hall-effect electronic angular position sensor completely eliminates wear from physical contact. It features excellent noise immunity and supports 360-degree angle measurement, resulting in faster response and more precise control.

OE: The Hall structure brush plate is highly prone to physical wear and poor contact after prolonged use. This can lead to signal drift or even complete failure.

Throttle valve plate:

vika: The throttle valve plate is made of high-strength, heat-treatable alloy of high quality, offering excellent resistance to corrosion and oxidation. Besides, an anodizing process is applied to significantly reduce the adhesion of oil stains and carbon deposits.

OE: The throttle valve plate is made of ordinary aluminum without special surface treatment. After certain mileage, oil stains and carbon deposits can easily adhere to its surface and lead to sticking.

Main body material and process

vika: The throttle valve body is made of aluminum and treated with electrophoresis, offering high strength and strong corrosion resistance.

OE: The throttle valve body is made of Bakelite, which has lower strength.

Product information and compatible vehicle models

OE No, : A6510900370

Engine models:

1.8D(651901)/2.2D(651911;651912;651913;651916;651921;651924;651925;651930;651940;651950;651955;651956;651957;651958;651960;651961;651980)

Applicable models:

18/B-Class W246 11-18/C-Class A205 16-23/C-Class C204 11-15/C-Class C205 16-23/C-Class S204 07-14/C-Class S205 14-21/C-Class W204 06-14/C-Class W205 14-21/CLA C117 13-19/CLA X117 15-19/CLS C218 10-17/CLS X218 10-17/E-Class A207 09-17/E-Class C207 08-17/E-Class S212 08-16/E-Class W212 08-16/GLA X156 13-19/GLC C253 15-22/GLC X253 15-22/GLE W166 11-19/GLK X204 08-15/M-Class W166 11-19/S-Class L V221 04-13/S-Class L V222 13-20/S-Class W221 04-13/S-Class W222 13-20/SLC R172 15-20/SLK R172 11-20/Sprinter B900 95-06/Sprinter B906 06-18/Sprinter B907 18-/Sprinter B910 18-/V-Class 639 03-14/V-Class W447 14