7.1 The basis of our liability for defects is exclusively the agreement reached on the quality of the delivery item. The specifications stated by us, the product description and our manufacturer’s specifications which are the subject of the individual contract or which have been publicly announced by us (in particular in catalogs or on our Internet homepage) at the time of the conclusion of the contract shall be deemed to be the agreement on the quality of the delivery item.
7.2. The customer’s claims for defects presuppose that he has fulfilled his statutory obligations to examine the goods and give notice of defects (§§ 377, 381 HGB). If a defect becomes apparent upon delivery, inspection or at any later time, we must be notified thereof in writing without delay. In any case, obvious defects shall be notified to us in writing within 5 working days of delivery and defects not apparent upon inspection shall be notified to us within the same period of time after discovery. If the customer fails to make the proper inspection and/or notification of defects, our liability for the defect not notified or not notified in time or not notified properly shall be excluded in accordance with the statutory provisions.
7.3 We shall be entitled to make the owed supplementary performance dependent on the customer paying the purchase price due. However, the customer shall be entitled to retain a part of the purchase price that is reasonable in relation to the defect.
7.4 All parts of the delivery or services which become unusable or whose usability is significantly impaired within 12 months from the date of delivery or acceptance as a result of a circumstance existing at the time of transfer of risk, in particular due to defective design, poor materials or defective workmanship, shall, at our discretion, be repaired, replaced or provided again (subsequent performance). This does not imply a change in the legal burden of proof. We must be notified immediately of the discovery of such defects.
7.5 The customer shall grant us the time and opportunity reasonably required for subsequent performance. If he refuses to do so without good cause, we shall be released from liability for defects. The customer’s right of cancellation shall be governed by the statutory provisions. Claims of the customer for damages or reimbursement of futile expenses shall also exist in the case of defects only in accordance with clause 9. and shall otherwise be excluded.
7.6 We shall bear or reimburse the expenses necessary for the purpose of inspection and subsequent performance, in particular transport, travel, labor and material costs and, if applicable, removal and installation costs, in accordance with the statutory provisions if there is actually a defect. Otherwise, we may demand reimbursement from the customer of the costs incurred as a result of the unjustified request to remedy the defect (in particular inspection and transport costs), unless the lack of defectiveness was not apparent to the customer.
7.7 In urgent cases, e.g. if operational safety is at risk or to prevent disproportionate damage, the customer shall have the right to remedy the defect itself and to demand reimbursement from us of the expenses objectively necessary for this purpose. We are to be informed immediately of such a self-execution, if possible in advance. The right of self-execution shall not exist if we would be entitled to refuse a corresponding subsequent performance according to the statutory provisions.
7.8 The liability for defects shall not apply to natural wear and tear or soiling, nor to damage occurring after the transfer of risk as a result of incorrect or negligent handling, improper use, unsuitable operating materials, and such chemical, electrochemical or electrical influences as are not assumed under the contract. Any improper modifications and repair work carried out by the customer or third parties shall void the liability for the resulting consequences.