Terms and Conditions for the Sale of Goods

TERMS AND CONDITIONS

of DIESELCONTROL s.r.o.

registered office: U kněžské louky 2125/51, Žižkov, 130 00 Prague 3, Czech Republic
Company ID (IČ): 04741587
VAT ID (DIČ): CZ04741587
entered in the Commercial Register kept by the Municipal Court in Prague, Section C, Insert 252945
e-mail: info@diesel-control.cz
phone: +420 777 904 042
branch address for complaints, returns and general correspondence: Na Kocandě 31, 412 01 Litoměřice, Czech Republic

for the sale of goods via the online store located at www.diesel-control.eu

Effective from: 9 March 2026

1. Introductory provisions

1.1 These terms and conditions govern the mutual rights and obligations of the Seller and the Buyer arising in connection with a purchase contract concluded through the online store operated at www.diesel-control.eu.

1.2 These terms and conditions apply where the Buyer is a consumer, i.e., a natural person who, when concluding and performing the contract, is not acting within the scope of their business activity or independent profession.

1.3 These terms and conditions do not apply to purchases made by entrepreneurs, legal persons or persons acting within the scope of their business activity. Such relationships are governed by an individual agreement, a confirmed order and/or special terms for business customers.

1.4 Deviating provisions may be agreed in the purchase contract. Deviating agreements in the purchase contract take precedence over these terms and conditions.

1.5 The Seller may amend or supplement the wording of these terms and conditions. This does not affect rights and obligations arising during the effectiveness of the previous wording.

2. User account

2.1 Based on the Buyer’s registration on the website, the Buyer may access their user interface and place orders. If the online store interface allows, the Buyer may also place orders without registration.

2.2 When registering and ordering, the Buyer must provide all data correctly, completely and truthfully. The Buyer must update the data in the user account without undue delay whenever it changes.

2.3 Access to the user account is secured by a username and password. The Buyer must keep confidential the information necessary to access their user account.

2.4 The Buyer is not entitled to allow third parties to use the user account.

2.5 The Seller may cancel the user account, in particular if the Buyer does not use it for more than 12 months or breaches their obligations under the purchase contract or these terms and conditions.

2.6 The Buyer acknowledges that the user account may not be available continuously, in particular due to necessary maintenance of the Seller’s or third parties’ hardware and software.

3. Conclusion of the purchase contract

3.1 All presentation of goods in the online store interface is for information purposes only and the Seller is not obliged to conclude a purchase contract regarding such goods. Section 1732(2) of the Czech Civil Code does not apply.

3.2 The online store interface contains information about goods, including the prices of individual goods. Prices are stated including VAT and all related fees, unless expressly stated otherwise.

3.3 The online store interface also contains information about costs associated with packaging and delivery. Such information applies to deliveries within the Czech Republic and the Slovak Republic, unless stated otherwise. Delivery to other countries may be arranged individually.

3.4 To order goods, the Buyer fills in the order form in the online store interface. The order form contains in particular information about:

- the ordered goods,
- the method of payment,
- the required method of delivery,
- costs associated with delivery.

3.5 Before submitting the order, the Buyer may check and change the data entered, including the ability to detect and correct errors made when entering data. The Buyer sends the order to the Seller by clicking the relevant order button.

3.6 After receiving the order, the Seller will confirm receipt by e-mail to the Buyer’s e-mail address. This receipt confirmation is not acceptance of the offer to conclude a purchase contract.

3.7 The purchase contract is concluded when the Seller sends the Buyer an order confirmation (acceptance), or upon dispatch of the goods to the Buyer if the nature of the transaction implies that acceptance occurred in this way.

3.8 Depending on the nature of the order, the Seller is entitled to request additional confirmation of the order, for example by phone or e-mail.

3.9 The Buyer agrees to the use of distance communication means when concluding the purchase contract. Any costs incurred by the Buyer in using distance communication means are borne by the Buyer.

3.10 Incorrect price / obvious pricing error
If an obviously incorrect price is displayed for goods in the online store (in particular a price clearly inconsistent with the usual market price, an obvious decimal separator error, a missing digit/order of magnitude, etc.), the Seller is not obliged to conclude a purchase contract at such a price.
If, after sending the order confirmation (acceptance), the Seller discovers that the price was stated incorrectly due to a technical mistake, the Seller is entitled to proceed in accordance with the relevant provisions of the Czech Civil Code on mistake and cancel the contract. The Seller will inform the Buyer without undue delay and will offer the Buyer the option to conclude the contract at the correct price or to cancel the order. In the event of cancellation, any amounts already paid will be refunded without delay.

4. Price of goods and payment terms

4.1 The Buyer may pay the price of goods and any costs associated with delivery to the Seller in the following ways:

- cash on personal collection, if offered,
- cash on delivery,
- non-cash transfer to the Seller’s account,
- or another method stated in the online store interface.

4.2 Together with the purchase price, the Buyer must also pay the costs associated with packaging and delivery in the agreed amount.

4.3 In the case of a non-cash payment, the Buyer must state the correct variable symbol, if assigned. The Buyer’s obligation to pay is fulfilled when the relevant amount is credited to the Seller’s account.

4.4 The Seller is entitled to require payment of the full purchase price before dispatch, especially in the case of a non-standard order, a higher order value or doubts about the correctness of the order.

4.5 Any discounts cannot be combined unless the Seller expressly states otherwise.

4.6 The Seller will issue a tax document (invoice) and send it electronically to the Buyer’s e-mail address and/or include it with the shipment.

5. Transport and delivery

5.1 The delivery method and current shipping prices are stated in the online store interface. If the Seller offers free shipping upon reaching a certain order value, such rule applies only to the extent and under the conditions stated on the website at the moment the order is submitted.

5.2 If a delivery method is agreed based on a special request of the Buyer, the Buyer bears the risk and any additional costs associated with such delivery method.

5.3 If the Seller is obliged to deliver the goods to the place specified by the Buyer in the order, the Buyer must accept the goods upon delivery.

5.4 If, for reasons on the Buyer’s side, it is necessary to deliver the goods repeatedly or in a different way than stated in the order, the Buyer must pay the related costs.

5.5 Upon receipt of the goods from the carrier, the Buyer must check the integrity of the packaging and, in the event of obvious defects, notify the carrier and the Seller without undue delay.

6. Transfer of title and risk of damage

6.1 The Buyer acquires title to the goods upon payment of the full purchase price.

6.2 The risk of damage to the goods passes to the Buyer upon acceptance of the goods.

7. Withdrawal from the purchase contract by the consumer

7.1 A Buyer who is a consumer has the right to withdraw from a purchase contract concluded by distance means within 14 days from the day of receiving the goods, without giving any reason.

7.2 If the subject of the contract is several types of goods or delivery in several parts, the withdrawal period runs from the day of receiving the last delivery.

7.3 The Buyer may send the withdrawal from the purchase contract in particular:

- by e-mail to info@diesel-control.cz, or
- by post to the address for complaints and returns stated in these terms and conditions.

7.4 The Buyer may use the model withdrawal form provided by the Seller, but it is not mandatory.

7.5 If the Buyer withdraws, they must send or hand over the goods to the Seller without undue delay, no later than 14 days from withdrawal.

7.6 The Buyer bears the costs associated with returning the goods.

7.7 The Seller will refund the Buyer without undue delay, no later than 14 days from withdrawal, all funds received, including delivery costs, in the same way as received. If the Buyer chose a delivery method other than the cheapest offered, the Seller will refund delivery costs only up to the amount corresponding to the cheapest offered method.

7.8 The Seller is not obliged to refund the funds before the returned goods are received or before the Buyer proves that the goods have been sent back, whichever occurs first.

7.9 The Buyer is liable to the Seller for any decrease in the value of the goods resulting from handling beyond what is necessary to become familiar with the nature, characteristics and functioning of the goods.

7.10 The Buyer acknowledges that, under Section 1837 of the Czech Civil Code, withdrawal is not possible in particular for contracts:

- for the supply of goods modified according to the Buyer’s wishes or for their person,
- for the supply of goods subject to rapid deterioration,
- for the supply of goods which have been irreversibly mixed with other goods after delivery,

and in other cases stipulated by law.

7.11 Special conditions for technical parts of the fuel system

For technical parts of the fuel system, in particular injectors, pumps, control valves, nozzles, sensors, valve assemblies and other precision parts of the Common Rail system, the Buyer may examine the goods only to the extent necessary to verify their nature, properties and compatibility.

Handling beyond this scope includes in particular:

- installing the part into a vehicle, engine or other device,
- putting the part into operation,
- connecting the part to the fuel or lubrication system,
- contact of the part with fuel, oil or other operating fluids,
- removing protective caps, seals, plugs, identification labels or serial markings,
- unprofessional handling, soiling or contamination of the part,
- any intervention preventing further sale of the goods as new.

In such cases, the Buyer is liable for the decrease in value. The Seller is entitled to claim compensation for the decrease in value and set it off against the Buyer’s claim for a refund of the purchase price.

The Buyer acknowledges that even short-term installation or operation in a contaminated fuel system may cause damage that may not be immediately detectable upon receipt of returned goods. The Seller is therefore entitled to have the returned goods assessed professionally also subsequently and to evaluate signs of installation, operation, soiling or contamination.

8. Voluntary returns outside statutory withdrawal

8.1 In cases where the Buyer does not have a statutory right of withdrawal, or in the case of a return by agreement outside the statutory regime, the Seller may, at its discretion, accept a return individually.

8.2 There is no legal entitlement to such return. In such case, the Seller is entitled to set conditions individually, in particular requiring that the goods are unused, not installed, not contaminated by operating fluids, undamaged, and in their original condition enabling further sale.

9. Rights from defective performance and complaints

9.1 The Seller is liable to the Buyer that the goods are free from defects upon acceptance.

9.2 If a defect appears within one year of acceptance, it is presumed that the goods were defective already upon acceptance, unless the nature of the goods or defect excludes this.

9.3 The Buyer may claim a defect that appears within two years from acceptance.

9.4 If the goods have a defect, the Buyer may request at their choice:

- removal of the defect by repair, or
- delivery of a new item free of defects,

unless the chosen method is impossible or disproportionately costly compared to the other method.

9.5 The Buyer may request a reasonable discount or withdraw from the contract if:

- the Seller refused to remove the defect or did not remove it in accordance with the law,
- the defect appears repeatedly,
- the defect constitutes a material breach of contract,
- or it is apparent from the Seller’s statement or circumstances that the defect will not be removed within a reasonable time or without significant difficulties for the Buyer.

9.6 The Buyer may not withdraw if the defect is insignificant.

9.7 Complaints may be filed in particular:

- in person or by post at Na Kocandě 31, 412 01 Litoměřice, Czech Republic,
- by e-mail at info@diesel-control.cz,
- or by another contact method stated on the Seller’s website.

9.8 When filing a complaint, the Buyer must state identification details, order or document number, description of the defect, and the requested method of handling the complaint.

9.9 The Seller will issue a confirmation of the complaint, stating the date of submission, its content, the requested method of handling, and the Buyer’s contact details.

9.10 The complaint, including remedy of the defect, will be handled without undue delay, no later than 30 days from submission, unless the Seller and the Buyer agree on a longer period.

9.11 Special provisions for precision fuel system parts

For precision fuel system parts, especially injectors, pumps, control valves and their components, the Buyer must ensure professional installation, compliance with the manufacturer’s and Seller’s installation instructions, and proper technical condition of related parts of the system, especially cleanliness of the fuel system.

The Seller is not liable for defects or damage arising in particular from:

- unprofessional installation or removal,
- installation in a contaminated, damaged or otherwise unsuitable fuel system,
- use of unsuitable or contaminated fuel,
- failure to follow installation and service instructions,
- intervention in the construction of the part,
- normal wear and tear or improper use.

If expert examination is necessary to assess the complaint, the Buyer must provide the Seller with necessary cooperation, especially deliver the complained goods including relevant information about installation and operation.

10. Out-of-court consumer dispute resolution

10.1 The competent body for out-of-court resolution of consumer disputes arising from the purchase contract is the Czech Trade Inspection Authority (Česká obchodní inspekce), Štěpánská 567/15, 120 00 Prague 2, Company ID: 000 20 869, website: www.coi.cz.

10.2 The online dispute resolution platform is available at ec.europa.eu/consumers/odr. The Seller is not obliged or committed to participate in out-of-court dispute resolution before a private entity unless required by law.

11. Personal data protection

11.1 The Seller processes the personal data of Buyers primarily for the purpose of concluding and performing the purchase contract, fulfilling legal obligations and protecting the Seller’s legitimate interests.

11.2 Detailed information about personal data processing, scope, retention, recipients and data subject rights is provided in a separate document (Personal Data Processing Principles) published on the Seller’s website.

12. Delivery of notices

12.1 Unless agreed otherwise, all correspondence related to the purchase contract must be delivered to the other party by e-mail, in person or by registered mail through a postal service provider.

12.2 Notices to the Buyer are delivered to the e-mail address stated in the order or user account.

13. Final provisions

13.1 If the relationship under the purchase contract contains an international element, the contractual relationship is governed by the law of the Czech Republic. This does not affect consumer rights arising from generally binding regulations.

13.2 If any provision of these terms and conditions is invalid or ineffective, it shall be replaced by a provision whose meaning comes as close as possible to the invalid provision. The invalidity or ineffectiveness of one provision does not affect the validity of the other provisions.

13.3 The purchase contract, including these terms and conditions, is archived by the Seller electronically and is not publicly accessible.

13.4 Seller’s contact details:
DIESELCONTROL s.r.o.
U kněžské louky 2125/51, Žižkov, 130 00 Prague 3, Czech Republic
Company ID (IČ): 04741587
VAT ID (DIČ): CZ04741587
phone: +420 777 904 042
e-mail: info@diesel-control.cz
branch address for complaints, returns and correspondence: Na Kocandě 31, 412 01 Litoměřice, Czech Republic

Recommended attachment: Model withdrawal form

Addressee:
DIESELCONTROL s.r.o.
Na Kocandě 31
412 01 Litoměřice
Czech Republic
E-mail: info@diesel-control.cz