Variable camshaft actuator for Volkswagen Golf MK VII CMBA / CXSA 4-cyl 1.4 Dir. Inj. Turbo 11.12 - 6.15 VCA-059

Variable camshaft actuator for Volkswagen Golf MK VII CMBA / CXSA 4-cyl 1.4 Dir. Inj. Turbo 11.12 - 6.15 VCA-059

SOLD OUT
Enter your email to receive a notification when this item is back in stock
 
Variable camshaft actuator for Volkswagen Golf MK VII CMBA / CXSA 4-cyl 1.4 Dir. Inj. Turbo 11.12 - 6.15 VCA-059

Inlet & Exhaust

ariable Camshaft Actuators (VCA) Oil control Valves

What a Technician needs to know when working on or diagnosing faults on a Variable Valve Timing (VVT) system.

Brief description of VVT system.

The variable valve timing system is now commonly fitted by most vehicle manufacturers to advance and retard the camshaft in relation to the crankshaft position within the cylinder.

Early VVT systems were utilised to increase engine performance.
Later (more advanced) Cam – Changing and Cam – Phasing VVT systems are utilised to increase Torque, Power, Efficiency and Idle performance throughout the total RPM range.

A typical advanced system is the Toyota VVTL-i with continuous cam-phasing VVT and 2 stage variable valve lift plus valve opening duration applied to both intake and exhaust valves.

A typical simple VVT valve cycle.

The BMW (VVT) Vanos system (Variable Nockenwellen Steuerung) at lower engine speeds, opens the valves later during the intake stroke. This increases the vacuum and scavenging effect which improves idle quality and acceleration from a stationary condition. As the engine RPM increases, the valves are opened earlier to enhance Torque.

In the E46 3-series, the Double-Vanos shifts the intake and exhaust camshaft within a range of 40° and 25° respectively.

How does the VVT actuator oil control valve affect the VVT system?

The VVT system generally utilises oil pressure as the internal force for the actuator to change the Camshaft phasing. The flow control of the oil pressure is performed by the VVT actuator control valve that is operated by a pulse width modulated signal from the PCM. The control valve integrates a solenoid and spool valve that allows engine oil to be directed to various paths.

Typical VVT faults and causes that affect its operation.

Being a mechanical/hydraulic system that is controlled by electronics, there are a few areas of concern if the system is not maintained correctly.

When the engine oil is contaminated due to extended service intervals or incorrect engine oil viscosity used during an oil service, the VVT system may create a sluggish or seized VVT actuator that can result in poor engine performance and even a no start condition.
Excess contamination may generally cause the spool valve in the VVT actuator control valve to jam and create an excessive advanced or retarded camshaft condition.
Failed electrical circuits will cause the actuator to remain in the retarded or advanced position that would depend on the spool valve position in the VVT oil control valve.
VVT Actuator internal gears and seals may wear over time and cause incorrect VVT operation.
Low engine oil pressure that can cause incorrect VVT operation and misdiagnosis.
Incorrect valve timing due to wear in the drive chain/belt or after drive chain /belt replacement.
Note: It is important to investigate any Service Information Bulletins that relate to the VVT system when a malfunction in the system occurs. A malfunction in the VVT system may cause the “Service Engine Soon” (MIL) light to illuminate and multiple fault codes logged in conjunction with loss of engine power and possible rattling sounds.

Oil service schedules need to be adhered to as delaying service intervals is a main factor for VVT failure due to oil contamination and mechanical wear.

Testing the Oil Control Valve.

If the oil control valve is suspected of being faulty, checking the electrical resistance of the coil windings is a simple task.

Typical resistance readings for KIA vehicle VVT valves at 20 Deg C are:

Denso - 6.9 to 7.9 Ohms
Delphi - 6.7 to 7.7 Ohms
Siemens - 6.8 to 8.0 Ohms
If the resistance is within specs, the movement of the spool valve may be inhibited by internal foreign objects. Movement of the spool valve may be checked by powering the 2 terminals of the unit and it is recommended to renew the valve if it is suspect.

On car testing of the VVT.

Utilising a suitable scanner and a suitable oscilloscope. Checking Camshaft and Crankshaft position sensor signals as well as PWM signals can assist the Technician with VVT operational diagnosis.

Typical VVT vehicle system identification.

VVT Chrysler, GM, Proton, Suzuki, Isuzu, VAG group, Toyota
VVTi Toyota, Lexus
AVCS Subaru
AVLS Subaru
CPS Proton
CVVT Hyundai, KIA
DCVCP General Motors
DVVT Daihatsu
MIVEC Mitsubishi
MultiAir Fiat
N-VCT Nissan
S-VT Mazda
Ti-VCT Ford
VANOS BMW
ValveTronic BMW (also adjusts valve lift)
VarioCam Porsche
VTEC Honda
i-VTEC Honda
VTi Citroen
VVC MG, Rover
ValveLift Audi
VVEL Nissan, Infinity
CamTronics Mercedes

Specifications:

Inlet & Exhaust
SKU: VCA-059_1093

Shipping Details

Speed Parts offers free shipping on the vast majority of fixed-price items, and delivers to every state in Australia. At present, we do not ship outside Australia. If you live in a remote area (NT, FNQ, WA etc.) you may be up for a postage surcharge on larger/heavier items.

Please always check your postcode in MyDeal's postage calculator before making a purchase. Delivery estimates are in business days (Monday to Friday, public holidays excluded)

Victoria Metro: 1-3 days  Regional: 2-6 days

NSW Metro: 2-5 days Regional: 3-7 days

ACT Metro: 2-5 days Regional: 3-7 days

QLD Metro: 2-5 days Regional: 5-7 days

SA Metro: 2-5 days Regional: 3-7 days

TAS Metro: 2-5 days Regional: 3-7 days

WA Metro: 8-10 days Regional: 10-14 days

NT Metro: 8-10 days Regional: 10-14 days

Unfortunately, due to OH&S laws and regulations, we have a strict 'no pickup policy' at Speed Parts.

POSTAGE & DISPATCH:

  • After payment is cleared 90% of all items are dispatched within one business day, however, please see above for estimated delivery times by state.
  • Your item will be sent via courier or Australia Post depending on its size and weight. Items will only be delivered during normal business hours (9am-5pm) on weekdays.
  • Delivery is not available on weekends, public holidays, or after business hours.
  • Where goods are sent through Australia Post, the buyer may receive a knock on the door or a card in their letterbox indicating their item is available for pickup from their local post office. A signature is required for collection.
  • Buyers will be able to trace the delivery online with a unique tracking number which will be sent to you once the item has been despatched and accepted by the nominated freight carrier. A re-delivery fee will be charged to buyers for items that are undeliverable and/or returned due to an incorrect delivery address or unsuccessful delivery.
  • Please be aware that PO Boxes cannot receive items above 20kg or longer than 100cm. Buyers have the full responsibility to provide us with the correct delivery address and mobile phone number on the checkout page before payment. Any changes to address after checkout will not be considered valid.
  • The courier may require your assistance unloading some of the more oversized items from the vehicle. Our couriers deliver to the property entrance only. We cannot guarantee door-to-door delivery for every customer. Buyers in remote areas such as farms, islands, mining camps, small towns, out-of-towners, etc. may need to collect from their nearest freight depot.  

 

Speed Parts offer a 12-month warranty on all brand driven products and 6 month warranty on house brand products.

Warranty cover does not include damage caused by normal wear and tear, accidents, misuse, lack of maintenance, neglect, or other external causes; to damage caused by operating the equipment in a manner outside that described in the instructions. The warranty is considered void if the item has been modified, altered or tampered with by a person (or persons) outside its intended use.

Parts purchases, consumable components, and accessories [such as electrical components, hosing, chains and performance components etc.] are not covered by our standard warranty once used. Should your part or consumable component arrive with a manufacturers fault please contact us to discuss a resolution prior to using the item.

Until the nature of any fault is determined, the resolution Speed Parts can offer may vary. To assist with a quick resolution, photos will be required to help identify the issue. Where necessary, the item may need to be returned to determine fault/issue. Once the fault/issue is clarified, Speed Parts will offer to replace the item and if no replacement is available, an alternative product of similar quality will be offered. Other alternatives may be given to the satisfaction of both parties.

To assist with a quick resolution, photos will be required to be emailed to Speed Parts. Once the fault/issue is clarified, we may offer replacement parts to the customer. Where necessary, the item may need to be returned to repair the fault/issue. Free return postage is available for the first 30 days following purchase, beyond this, the buyer is responsible for returning the goods for repair (see RETURNS for more info). Once the fault/issue is clarified, Speed Parts may fit replacement product or offer replacement product to the customer. Other alternatives may be offered to the satisfaction of both parties.

As we are only stockists and not manufacturers of the products, any failed components may need to be assessed by the manufacturer and can take up to 30 days for a decision to be made.

Refunds by law: In Australia, consumers have a legal right to obtain a refund from a business for goods purchased if the goods are faulty, not fit for purpose or don't match description. More information at returns.

Should you wish to claim a warranty on your item, please follow the process outlined in the Return section.

WARRANTY DENIAL

The warranty claim may not be accepted in cases where the buyer has contributed to the failure, or been misleading in their description of their issues. In these instances, where freight costs were incurred by Speed Parts to return your item for inspection, reimbursement to Speed Parts may be required prior to releasing the goods. The item is also to be returned to the buyer at the buyer's expense. This returned freight cost not to exceed original freight cost. Where the item was purchased with free postage, freight costs are to be set at 25% of the item cost. Payment is to be made to Speed Parts within 14 days of being notified of warranty rejection. Where money is owed to Speed Parts for repairs and/or postage, Speed Parts is entitled to hold onto the item until payment is made.

 

RETURNS

Prior to returning any item, our Customer Service Department must first issue you a Return Authorisation (RMA) number. All other relevant information will be sent to you at this time.

Returns are accepted in line with our warranty conditions. No returns due to change of mind or errors in purchasing.

Should you wish to return a faulty item, please communicate via MyDeal Messenger. Photos and/or videos of the item may also be requested to assist in the return process.

When a return is authorised by management, it is the buyers responsibility to ensure the product is packaged securely to prevent any damage during the return process. Failure to do so may affect the ultimate resolution to be offered, which may include repairs or replacement items. Alternatively, a refund can be offered.

To enable Speed Parts to continue offering the very best price, freight arrangements vary depending upon the time that has expired since purchase. Within 30 days of the customer purchasing the item, Speed Parts may provide details allowing return of the item at no cost to the customer (where freight costs apply). Following this 30-day period, the customer is responsible for the cost of returning the goods.

If the item is required to be returned, the outcome of the inspection should take no longer than 8 business days from the date the item is received by our service department (times may vary). As we are only stockists and not manufacturers of the products, any failed components may need to be assessed by the manufacturer and can take up to 30 days for a decision to be made.

Negative MyDeal feedback or Google reviews do not resolve issues, Speed Parts prides itself on our customer service relations, and we are willing to resolve any issue that may arise.

 

30 DAY RETURNS

We must be notified within 30 days of you receiving the item that you intend to return it. All relevant returns information will be provided at this time.

The item must be returned at the buyers cost in original re-saleable condition with all tags and packaging (ready to be put back on the shelf). All products sold by Speed Parts are not resellable if the packaging is opened (as per MyDeal's return poilicy, 'If the item you're returning isn't in the same condition as it was when you received it, or if it gets damaged in transit, the seller may only give you a partial refund.' which includes all packaging). Please ensure you have selected the correct sizing on your products BEFORE purchase.

The item is securely packed to ensure it is received in original and re-saleable condition.

The item/s are NOT opened, used, worn or damaged, and are in perfect condition when received. 

Do NOT stick or write anything on the item itself or its original packaging. Please only write or place postage stickers once you have completed wrapping your item for dispatch to Speed Parts. Failure to do so may cause a rejection on the return.

If the item was sent with free postage, a postage fee of up to 25% will be deducted from the refund amount.

If the item has sustained damage in transit, or does not return as noted above, a revised refund amount may be required

If you wish to make a return within 30 days, please send us a message via MyDeal Messenger stating your order number, the item/s you wish to return, and the reason for the return. Our Customer Service team will respond to your email and, if applicable, issue you a Return Authorisation (RMA) number. All other relevant information will be given to you at this time. Speed Parts will not accept the return of any item/s without an RMA attached.

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law.

You are entitled to a replacement or refund for a major failure or for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

 

 

Refund Guarantee Icon
Shop with peace of mind
All marketplace products are covered by our MyDeal Refund Guarantee Learn More

Estimated Delivery Time Frame: 4 - 10 business days

Have a question about this product? Click here
Sold & shipped by Speed Parts
cashback icon
bronze Seller
A seller's rating is an overall score calculated from performance metrics. Learn More
89.76%

More from this brand

Reference ID: 8255805

Reviews (0) Add Review

No reviews yet