VW & Audi 2.0 TFSI balance shaft delete sprocket
| Brand: | ZEDPERFORMANCE® |
| Product Code: | 2.0-tfsi-balance-shaft-delete |
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£125.99 VAT incl.
Available Options
Balance Shaft Delete Freewheel Sprocket for 2.0 TFSI EA113
We supply this balance shaft delete freewheel sprocket for compatible 2.0 TFSI EA113 oil pump assemblies. It replaces the original two-piece balance shaft sprocket with OE reference 06F 105 243 C / 06F105243C.
You recieve the GCr15 steel sprocket with a radial deep-groove ball bearing, two retaining circlips and a grade 12.9 fixing bolt. The sprocket teeth are selectively heat-treated. The bearing has C3 internal clearance.
How the freewheel sprocket works
The bearing allows the sprocket to rotate independently of the shaft it would otherwise drive. This disconnects the balance shaft drive at that position while retaining the chain-driven oil pump arrangement.
Freewheeling and physically removing the balance shafts are different jobs. Fitting a freewheel sprocket doesnt remove the shafts or their weight from the egnine. It also doesnt automatically stop every shaft or gear inside the module. The oil pump assembly must have the appropriate internal balance shaft deactivation or removal work completed for the intended configuration.
This distinction is also discussed by owners in this EA113 balance shaft delete thread. Check the complete pump arrangement before fitting rather than assuming a replacement sprocket alone performs a full delete.
Why replace the original sprocket?
Failure of the original balance shaft sprocket can damage or interrupt the chain drive shared with the oil pump. Loss of oil pump drive can cause serious engine damage. Replacing the original two-piece sprocket removes that component from the assembly.
Deleting the balance shafts can reduce the load required to drive them. The result depends on which rotating components remain connected inside the pumps module. This sprocket isnt supplied with a measured horsepower gain or a guaranteed increase in oil pressure.
Expect a change in engine vibration when the balance shafts are deactivated. The amount felt through the vehicle depend on the engine speed, mounts and installation. Owners discuss differing experiences in this balance shaft delete and vibration discussion.
Material and bearing specification
- GCr15 bearing steel sprocket
- Selectively heat-treated sprocket teeth
- Radial deep-groove ball bearing with C3 internal clearance
- Two circlips retaining the bearing
- Grade 12.9 fixing bolt
GCr15 belongs to the bearing-steel family commonly compared with SAE 52100. Its suitability depend on the finished component's heat treatment and manufacture. The material designation alone doesnt establish that it will outlast an EN24 sprocket.
C3 describes increased internal bearing clearance. It isnt a speed rating. The bearing's permissible operating speed also depends on its exact specification, lubrication and operating temperature.
EA113 application guide
For compatible 2.0 TFSI EA113 petrol engines with the corresponding oil pump and balance shaft sprocket arrangement. Check the engine code and existing pump assembly before ordering. A 2.0 TFSI or TSI badge alone doesnt identify the engine family.
| Vehicle family | Relevant EA113 applications |
|---|---|
| Audi A3 / S3 | Selected A3 8P 2.0 TFSI and S3 8P versions |
| Audi TT / TTS Coupe and Roadster | Selected TT 8J 2.0 TFSI and TTS 8J versions |
| SEAT Altea / Toledo | Selected EA113 2.0 TFSI versions |
| SEAT Leon | Selected Leon 1P 2.0 TFSI, Cupra and Cupra R versions |
| Skoda Octavia | Selected early Octavia Mk2 vRS 2.0 TFSI versions |
| VW Golf | Golf Mk5 GTI, Edition 30 and Pirelli versions. Golf Mk6 R with the EA113 engine |
| VW Golf Cabriolet | Golf R Cabriolet with the EA113 engine |
| VW Eos / Jetta / Passat and Variant | Selected EA113 2.0 turbo petrol versions |
| VW Scirocco | Compatible Scirocco R versions with the EA113 engine |
| VW Bora / Vento | Market-specific applications require confirmation by engine code and pump reference |
Engine codes in the application group include AXX, BPY, BWA, BHZ, BZC, BYD, BWJ, CDLA, CDLB, CDLC, CDLD, CDLF, CDLG, CDLK, CDMA and CRZA. This list doesnt mean every code applies to every model above. Confirm the original sprocket reference and pump configuration as well as the engine code.
Not for EA888 engines or TDI diesel engines. Some vehicle ranges contain both EA113 and EA888 petrol engines. Check the actual engine fitted especially if the vehicle has had an engine or oil pump replacement.
Installation and pump inspection
The sprocket can be fitted with the oil pump module remaining installed where the assembly and access permit. The sump must be removed for access. The balance shaft delete freewheel sprocket itself doesnt require cutting the pump housing. Any separate internal deactivation or full shaft-removal work must follow the procedure for that configuration.
Inspect the oil pump chain, tensioner, guides, sprockets and pickup strainer while the sump is off. If the original sprocket has failed check for debris and damage before fitting the replacement. This sprocket wont repair a worn pump or restore an already damaged chain drive.
If the shafts are physically removed any affected oil feeds must be dealt with as part of that conversion. Oil-gallery work is separate from fitting the freewheel sprocket and shouldnt be assumed necessary for every freewheel installation.
A return to the original arrangement depends on what other work has been carried out. A sprocket swap may be reversible but cutting gears, removing shafts or modifying oil galleries can require replacement components to restore the factory assembly.
Have the work completed by a mechanic familiar with EA113 oil pump assemblies. Check chain alignment and free movement before closing the sump and verify oil pressure using the correct workshop procedure after the repair.
