Questions and answers
The MOL Fleet Ltd. will be merged into Mercarius Kft. as of 1 January 2026
On 31 December 2025, MOL Fleet Solution Ltd. will be merged into Mercarius Flottakezelő Kft., while maintaining the continuity of services and contracts. This subpage is intended for MOL Fleet customers and partners who are looking for practical information related to the change.
Main topics
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Billing and payment
Who will issue the rental fee invoices after the merger, and what billing details will appear on the invoice?
As the legal successor of MOL Fleet Ltd., the rental fee invoices will be issued by Mercarius Kft.
The billing details are as follows:
- Registered office: 1142 Budapest, Komáromi út 36-38.
- Company registration number: 01-09-886659
- Tax number: 12238673-2-44
Will there be any changes to the rental fees?
Will there be any changes to other fees (e.g., excess mileage charges)?
Will there be any changes in the invoicing of fines?
No, the process of invoicing fines will continue as usual; the only change is that the invoices will be issued by Mercarius Kft.
In accordance with the contract, fines issued to vehicles leased to and used by the Customer, but registered in the name of MOL Fleet Ltd., will continue to be invoiced to our Customer. Detailed information about each incident will be provided as an attachment to the invoice.
Will there be any changes to the payment deadlines?
Is any change expected in the management of outstanding payments?
Following the merger, the management of outstanding payments will be handled uniformly by the MOL Mercarius finance team for all customers. In practice, this means that after a successful migration, our partners will receive automated notifications prior to invoice due dates about upcoming payment deadlines, as well as multiple reminders in case of overdue payments.
If the outstanding payment is not settled, sales and/or financial staff will contact the respective partner by email or phone to discuss the expected payment date and necessary steps.
Who can be contacted, and through which channels, if there are questions about invoices or if an error is detected?
To which bank account should payments be transferred after the merger for invoices already issued but not yet paid?
Please make all payments to the bank account number indicated on the invoice. The bank accounts of MOL Fleet Ltd. will be transferred to Mercarius Kft. as part of the legal succession.
What happens to the paid deposit and security deposit?
From which email address will the invoices be sent, and in what format (e-invoice or PDF) will they be delivered?
Will there be any changes in the forwarding of remittance advices for consolidated payments?
Contract
Which party will be the contractual partner after the merger?
What changes are expected in the framework agreements signed from 1 January 2026?
Will it be necessary to amend the framework agreements or the lease contracts?
What impact will the merger have on the duration or terms of existing contracts?
Who can I contact regarding modifications to lease contracts?
Will the general regulations regarding the use of leased vehicles change?
The general regulations regarding the use of leased vehicles will remain unchanged.
What will be the minimum and maximum lease periods for leased vehicles in the future?
The merger will not result in any changes to short-term or long-term lease periods.
For Customers with framework agreements, short-term lease contracts can still be concluded for periods as short as one day.
For long-term leases (operational leasing), we typically contract with our Customers for a term of 3 to 5 years. In justified cases – such as vehicle manufacturing difficulties or prolonged delivery times – the lease term may be extended beyond this period through contract extensions.
Will the vehicle operator change as a result of the merger?
If MOL Fleet Ltd. was the operator of the fleet vehicles, the operator’s rights will be transferred to Mercarius Kft. together with ownership. We kindly ask our Clients to use the court’s Order registering the Merger as proof of this. Should it become necessary to replace the vehicle registration certificate, we will inform our Clients separately according to the appropriate schedule.
In the event that the Client performs the operator’s duties, the merger will not result in any changes in this regard.
Contact
Will the technical customer service still be available at +36 30 263 9198 in the future?
Yes, the number +36 30 263 9198 will remain available on working days from 8:00 AM to 4:30 PM. Any changes to this service in the future will be communicated to our Customers in a timely manner.
Will the 24/7 Assistance service still be available at +36 1 347 7567 in the future?
Will the legal successor of MOL Fleet Solution continue to receive postal mail at the address 1117 Budapest, Dombóvári út 26, 3rd floor?
No, going forward, please send postal mail to the MOL Mercarius central office at the following address:
1139 Budapest, Lomb utca 30-32., Balance Hall Office Building, 3rd floor.
Personal contact
Can I still contact the dedicated technical contact person (operator) for technical matters?
Can the dedicated representative or customer relationship manager still be contacted for non-technical matters?
Yes, the representatives and customer relationship managers will continue to provide support for non-technical issues.
Will former MOL Fleet colleagues remain reachable at their @molfleet.hu email addresses and existing phone numbers?
The use of @molfleet.hu email addresses will be discontinued, and colleagues will no longer receive messages sent to these addresses starting from 1 January 2026.
The new email format will be:lastname.firstname@molmercarius.hu.
Colleagues’ phone numbers will remain unchanged, and they will continue to be reachable at their usual numbers.
Who can be contacted regarding the following administrative matters: lost vehicle registration certificate, lost license plate, lost fuel card, forgotten fuel card PIN code, parking permit, green card, authorization required for driving, proof for residential parking permit, motorway vignette purchase, and will the handling process of these change?
For administrative matters, our Customer Service is readily available at ugyfelszolgalat@molmercarius.hu. For faster processing, our Customer Service can also be reached via the Contact form.
We especially recommend our fleet contact persons register on the MOL Mycarius customer portal: fast, convenient, available 24/7, where most fleet management tasks can be handled in one place with just a few clicks, including:
- Green card request
- Authorization request
- Vehicle user change
- Fuel card request
- Adding new employee
- Odometer reading submission
- Overrun/underrun monitoring
- Change of usage location
Detailed information is available here.
Please note that MOL Mycarius is currently available only in Hungarian.
Who should be contacted regarding contract renewals and new contracts in the future, and are any changes expected in the dedicated corporate contact person after the merger?
If I have further questions, who can I contact within the MOL Mercarius team?
Through which communication channels will updates and changes be communicated in the future?
Information will be provided via newsletters, which can be subscribed to here as a corporate contact person or vehicle user..
Operations
Will there be any changes to the service partner network after the merger?
Is any change expected in the service appointment process, and where will appointment booking be available?
Service appointments can be requested through the following channels:
- In the way accustomed so far through the operator colleagues by phone or by email,
- By filling out the contact form on the website,
- By calling the central phone number: +36 1 770 1000,
- By email, directly to our own service points.
For major repairs (e.g., mandatory/periodic maintenance, clutch, gearbox issues, technical inspection, fluid leaks, brake problems, suspension or air conditioning system faults), prior appointment scheduling is required.
For minor repairs (e.g., battery check or replacement, windshield wiper replacement, fluid top-up, bulb replacement, basic computer diagnostics), walk-in visits are also possible at MOL Mercarius’s own service centers; however, prior telephone consultation is recommended.
How can the driver service be requested in the future?
The driver service is available on weekdays between 8:00 AM and 4:30 PM, according to the terms specified in the contract.
The method of requesting the service remains unchanged: the need should be indicated when scheduling tire changes or service appointments, and our colleagues will arrange the provision of the service based on the contract.
How can a replacement vehicle be requested in the future?
A replacement vehicle can be requested for service or repair lasting more than 24 hours through the MOL Mercarius service reception and claims team. Our colleagues will provide detailed information about the options available under the contract.
What is the procedure in case of a damage event following the merger of the two companies?
Any damage must be reported within 48 hours using the following contact details:
- By phone: +36 1 770 1000 / extension 2
- By email: kar@molmercarius.hu
In case of an accident, the 24/7 Assistance service is still available at +36 1 347 7567. Any future changes to this service will be communicated to our Customers in a timely manner.
Photos, accident reports, and other documents can be submitted via the Contact form, on the Damage report section, or directly by email to kar@molmercarius.hu.
Our claims handling colleagues will contact the vehicle user regarding vehicle inspection and repair, and will arrange for a replacement vehicle if necessary. Afterwards, the case will be directed to the appropriate damage handling center for the repair process.
Does the assistance service cover international trips as well?
Are any changes expected to the existing assistance service elements after the merger?
Is any change expected in the vehicle tire service or among the partner tire service providers?
Yes, as a result of the merger, changes have occurred in the nationwide tire service partner network.
Our goal is to ensure that professional partners providing tire change services are available within a convenient distance for all our Customers.
In Budapest, Debrecen, and from 2026 in Szeged, it will also be possible to book appointments for seasonal tire changes at MOL Mercarius’s own service points.
The current list of seasonal tire change partners is available here.
How will appointment booking for seasonal tire changeovers be handled in the future?
How is the vehicle handover handled after the contract expires, and who should be contacted in advance?
Vehicle handovers primarily take place at MOL Mercarius’s own locations. The MOL Fleet return point in Budaörs will be discontinued.
For short-term rental contracts (lasting a few months), the intention to return the vehicle must be communicated at least 2 hours in advance.
For long-term rental contracts (lasting several years), the return appointment must be notified at least 2 working days in advance, following consultation with the dedicated customer relationship manager.
The intention to return the vehicle can be indicated via the Contact form under the ‘OTHER’ section by selecting the ‘Vehicle Return’ option, or by email at ugyfelszolgalat@molmercarius.hu.
Detailed information about vehicle returns is available on the website.
Are any changes expected in the availability or operating hours of services following the merger?
There will be no changes in service availability; services will continue to be accessible on working days from 8:00 AM to 4:30 PM.
Outside of working hours, the 24/7 Assistance service remains available at +36 1 347 7567. Any future changes to this service will be communicated to our customers in a timely manner.
Through which channel can I notify MOL Mercarius, if I encounter difficulties or wish to make a complaint?
Issues and complaints can be submitted via the Contact form on the website by selecting the ‘Complaint handling’ option. This submission will be sent directly to the MOL Mercarius Quality team.