FAQ

What Are the Benefits of ECU Tuning?

Professionally performed ECU tuning can improve vehicle performance without negatively affecting engine durability — provided that proper engine and transmission operating parameters are maintained.

In naturally aspirated engines, the possible power increase is typically around 2–10%. In turbocharged engines, a safe increase in power and torque can reach 10–35%, depending on the engine design and its technical condition.

A properly prepared modification may improve:

• engine flexibility,
• throttle response,
• mid-range acceleration,
• daily driving comfort,
• DSG transmission behavior and shift strategy after modifications.

At Szulc Motorsport every modification is individually prepared after prior vehicle diagnostics and analysis of drivetrain operating parameters.

All modifications are intended exclusively for motorsport use.

We do not use random “off-the-shelf” tuning files. Our priority is safety, proper diagnostics and drivetrain durability.

Motorsport Modifications

ECU tuning is currently one of the most popular methods of increasing engine power and torque at a relatively low cost.

Factory engine software is primarily designed to meet emissions regulations, reduce fuel consumption, maintain a large safety margin and ensure reliable operation under various operating conditions and fuel qualities.

With the right technical knowledge, experience and professional diagnostics, it is possible to individually optimize engine performance without negatively affecting durability — provided the vehicle remains in proper technical condition.

At Szulc Motorsport every modification is individually calibrated based on diagnostics, real-time parameter analysis and dynamic logging of the vehicle.

All modifications are intended exclusively for motorsport use and operation outside public roads.

After modification, the vehicle may lose its road homologation and may no longer comply with regulations required for vehicles used on public roads.

Individual chip tuning for off-road motorsport vehicles

Our tuning software is adapted to each vehicle for all vehicle characteristics. Includes and maintains all standard vehicle software specifications. Our goal is the error-free transmission of all individual vehicle-specific data to the tuning software, incl. vehicle and engine identification numbers, gearbox types, modules, diagnostic identifications, fail-safe programs. This corresponds to the natural quality deviations of the components supplied by the supplier (in the engine construction, e.g. pistons, heads, manifolds, turbochargers, exhaust systems, etc.). As a result, your vehicle behaves and can be serviced and diagnosed like any standard vehicle. Manufacturers use dozens of new software versions every day, which are developed for individual pallets of engines and vehicles and programmed in the vehicle engine ECU.
You can distinguish among others:

1. Vehicle type, gearbox version and vehicle driveline ...
are of course primarily decisive factors in software tuning, i.e. there are differences between the designs of individual vehicles, also between identical engines
Rear, front or all-wheel drive: Quattro, X-Drive, 4-Motion, 4-Mtic etc.
Sedan, Coupe, Cabriolet, Station wagon, SUV
5-speed manual, 6-speed manual, S-Tronic / Tiptronic, MultiTronic, DSG, POWERSHIFT, 5G-Tronic or 7G-Tronic etc.

2. Characteristics of the engine
Of course, differently tuned software also changes the characteristics of the engine. Therefore, an automobile company is able, with the same engine, with differently tuned software, to produce a diverse range of vehicles associated with its automotive marks. Each sign of a vehicle, as well as each type of vehicle, therefore receives its own slightly modified engine characteristics, without the need to re-develop the entire engine.

3. Mechanically identical engines - may have different performance variants
For example, almost all manufacturers now offer mechanically identical or almost identically designed engines with different performance variants. The more powerful and usually also more expensive performance variant, which is otherwise almost mechanically identical, often only has revised software in the engine ECU.

4. Deviations of series engines within series and supplier
The manufacturer produces, for example, 1000 engines with a rated power of 150 HP in series. After final assembly, these motors usually undergo an engine test bench test of approximately 20 minutes to verify mechanical functionality and determine power rating and maximum torque. However, the production of engines is subject to the so-called serial deviation, i.e. due to the different mechanical tolerances of individual components (piston, cylinder head, etc.). Of these 1000 engines, only about 330 will have the desired 150 HP. Another third of these engines will be above 150 to 160hp, and the last third will be less powerful, below 150hp, in the 140-150hp range. In order to compensate for these deviations, the software versions are uniquely adapted by the manufacturer to the engine series, i.e. by means of the ECU software the individual engines are adjusted to the rated power. There are also variations and stability characteristics of the individual components supplied by the vendors that need to be included in the ECU software. For reasons of cost, quality and logistics, it is common to use different suppliers for the same vehicle parts.

5. Fuel quality and emission standards
Basically, there are currently two different vehicle designs with regard to emissions and fuel quality. For us, however, only the so-called EC standard for all European vehicles. US vehicles usually only run outside of Europe. Just change to 98 octane fuel (super plus), most Otto engines have a noticeable improvement in "revitalization" and agility. Some manufacturers already recommend, especially with higher performance engines (eg M3, M5, Porsche 996, E55 - CL55 etc.), refueling with 98 octane fuel. Although most vehicles are only run on 95 octane fuel (super unleaded). Therefore, most standard production vehicles cannot run on 98 octane fuel. A good example is that Italy delivers the same vehicles as Germany, with identical performance figures. However, in Italy 98 octane (super plus) fuel is not available. Italy only has 95 octanes (super euro). However, if the necessary fuel for the rated power is not available nationwide, the vehicle would have to be delivered with a lower performance, however in Italy this is not done. A similar situation occurs for all turbodiesel engines in terms of the sulfur content and the cetane number of the diesel fuel available ...

6. Software Updates

While we regularly update our computers, tablets or phones so that they run faster and more efficiently and use less energy. The ECU and TCU can also be updated as continuous research and experience shows that better performance can be achieved for the engine or gearbox. You can think of a software update.

Modification of the software of the TCU automatic transmission controller - DSG, S-Tronic, PowerShift and hydrokinetic: 6HP, 8HP, 5G-tronic, 7G-tronic and many others.

Changes to the gearbox control software can meet the needs of a sporty and ambitious driver.
We will adjust the following parameters to specific requirements:

• shorter switching times
• changeover at engine speed
• freewheel engine speed when changing full load
• engine speed limitation on request
• adaptation of the torque limit when reprogramming the engine electronics
• launch control optimization
• shorter response times of shift paddles
• higher setting of forced up gear in manual mode
• Deactivating the kickdown function
• starting or clutch adjustable more smoothly
• Oeco mode with special switching operations
• If necessary, the modification maps will be adjusted in D or S mode. For cars with active / variable exhaust, we recommend only adjusting the S mode according to your wishes, because the exhaust in D mode sometimes has different cruising parameters.

In the context of Chiptunig, there are car models that can no longer be driven without modifying the software in the TCU gearbox. In these models, the correction is automatically included in the price of the chip tuning.

Not all automatic transmission models require modification of the TCU software as power and torque increase. It depends very much on the needs of each user. About 80% of users are satisfied after modifying the engine software, even without increasing the torque limit. 20% of users admit that during sports driving, the torque limit is too high immediately after shifting gears and therefore needs to be adjusted. These additional tweaks are available as well as the aforementioned improvements.
Here are some examples that require modification.
Gear type / modification required from NM / Max. Clutch mechanical torque
DQ200 / (Transverse) for example 1.4TSI, 1.8TSI / 250NM / 380NM
DQ250 (transverse) e.g. Golf 5 2.0 TFSI, 2.0TDI / 400NM / 480NM / 700NM (modified clutch)
DL251 (longitudinal) for example Audi A4 2.0 TFSI / 400NM / 480NM
DQ500 (Transverse) e.g. 2.5 TFSI / 550NM / 750NM
DL501 (longitudinal) for example Audi A6 3.0TDI / 550NM / 750NM

We also copy / clone TCU drivers, necessary for most modern gearboxes when installing a used gearbox for another car.

For racing use, we are able to modernize gearboxes according to customer expectations. Whether it is shifting, installing a differential lock or a heavy duty clutch, please get in touch. We can meet your requirements. We needed your vehicle for such modernizations for a long time. Price depends on development, mechanical and testing work. The service time required varies by model, type, software version, desired settings and associated test work and will be charged on a per-cost basis.

Yes, at any time we can restore the serial program that was.

We have legal access to serial programs used by manufacturers, as well as to updates and previous versions.

Performance measurement
 
We offer power and torque measurements with our DYNO PRO road dynamometer and with REDRIVE acceleration and braking.

Thanks to this measurement method, we can measure all types of vehicles in real road conditions, from classic cars to racing cars and trucks.

Measurement concerns:
wheel power (kW, hp)
Engine power (kW, hp)
Speed (km / h, mph etc.)
Torque (Nm)
Acceleration 0-300 km / h (in hundredths of a second) in any ranges and in individual gears.
Acceleration 1/4 1/8 mile (hundredths of a second)
Braking 100-0, or e.g. 0-200-0 km (time and distance)

STATUTE
By purchasing our services or products, you, as a customer, accept our terms.
It is the customer's responsibility to read these terms carefully before purchasing or requesting a service.
We disclaim all responsibility for the legality of certain services or products and encourage customers to read this before placing an order.
By ordering our services or products, the customer assumes all legal liability that may be related to any modification of the vehicle.
Correct mechanical and electronic conditions must be met for Chiptuning or other mechanical or software modifications to be correct. Chiptuning or any other modification of the software will never work properly if the car has a defective, damaged or partially damaged mechanical or electronic component: engine, gearbox, other components of the drive system, e.g. air flow meter, fuel pressure control valve, rail pressure sensor, gearbox converter and the like.
We disclaim all liability for existing mechanical and electronic defects, as this is the responsibility of the customer and goes beyond our scope of work. We guarantee the performance of Chiptunig, provided that there are no mechanical faults in the first place, etc. If, after re-mapping, it turns out that the car is not working properly, we show good will and always try two tuning files, which involves extending the service time in order to possible elimination and exclusion of errors in our tuning software. The customer does not receive a refund due to mechanical errors that make the software modification not working properly after Chiptuning. He also undertakes to cover the costs of diagnostics, about which he will be informed orally or by phone in the event of such problems. The scope of work is always determined before starting what work, so that the client is prepared for all costs. All additional work will be arranged verbally, by phone or e-mail.
Deactivation of Adblue / EGR / DPF is illegal in many countries, we encourage customers to investigate this before ordering the service, and SzulcMotorsport.com disclaims all legal liability in this regard, performs such services in good faith that the car will be used only for sports or off-road off-road.
Szulc Motorsport

FAQ – DSG DQ381 / DQ500 Repair Frequently Asked Questions

How long does DSG DQ381 / DQ500 repair take?

Most DSG DQ381 and DQ500 mechatronic repairs are completed within 1–2 business days. The process includes diagnostics, mechatronic removal, replacement of damaged sensors, controller data cloning, DSG adaptations and final road testing.

Is DSG oil replacement required after mechatronic repair?

Yes. Mechatronic repair requires draining the DSG transmission fluid. At Szulc Motorsport every repair includes fresh DSG oil and filter replacement to ensure proper gearbox operation after repair.

Is DSG controller cloning safe?

Yes. DSG controller cloning allows the vehicle to retain original coding, VIN data and factory gearbox parameters. In most cases the vehicle does not require additional programming at the dealer after repair.

Why do sensors fail in DSG DQ381 and DQ500 gearboxes?

The most common causes are high operating temperatures, natural electronic component wear and contaminated or overdue DSG oil. Aggressive driving style and incorrect gearbox shift strategy may also accelerate failures.

Does the entire DSG mechatronic unit always need replacement?

No. In many cases it is possible to professionally repair the original DSG mechatronic unit while retaining factory controller parameters. Proper diagnostics and accurate fault identification are essential.

Which vehicle brands use DSG DQ381 and DQ500 gearboxes?

DSG DQ381 and DQ500 transmissions are commonly used in Audi, Volkswagen, Skoda and SEAT vehicles. We service both stock and modified vehicles, including tuned engine and DSG applications.

Where do you perform DSG DQ381 / DQ500 repairs?

DSG diagnostics and repairs are performed at Szulc Motorsport – Warsaw / Wyszków, Poland. We specialize in Audi / VW / Skoda / SEAT diagnostics and transmission repair.