A customer orders a bicycle and is given a delivery date. The date passes and the seller gives a new, much later date.
If a fixed delivery date is not met, the seller is in default. If the consumer does not wish to wait any longer, he can withdraw from the contract. If payment has already been made, the customer can demand a refund from the seller. If the consumer wishes to adhere to the contract, he may be able to demand compensation for the damage caused by the delay.
The ordered racing bike arrives - but one component does not match the description.
The seller must deliver the bike as ordered. If this is not the case, there is a defect and the warranty rights apply. The consumer can then demand either a replacement delivery, i.e. the bike as described, or a repair. The seller must bear the costs for this. If the bike was ordered online and the consumer no longer wishes to have it in this version, the consumer can cancel the contract within 14 days of delivery.
The racing bike I ordered is damaged - a new bike would mean another wait of several months.
If the bike is delivered damaged, a new delivery or repair can be demanded as part of the warranty rights. If the latter is not possible and a new delivery is made significantly later, the consumer can withdraw from the contract. If the contract is to be honoured, the seller may also be required to compensate for the damage caused by the delay.