

Send us your malfunctioning Audi hydraulic pump for rebuild/upgrade service.
Turn around time is 1-3 days plus return shipping via USPS Priority Mail.
Your pump we be fully rebuilt and will exceed OEM pressure specs by at least 5%. Three years warranty.
Core Exchange is available with additional $200 refundable deposit.
No sales tax for orders in the USA
We provide world class technical support
3-year standard warranty (should last decades)
Is your convertible top not moving at all, and the pump motor is not running, although you hear the relays clicking next to the pump? This is the most common convertible top pump failure symptom for your Audi .
If you or your mechanic have diagnosed a bad pump motor, or your dealer told you that you need a new pump motor, we can rebuild and upgrade your pump to exceed factory specs for a fraction of the price of a new replacement.
Top Hydraulics fully rebuilds and tests your pump before sending it back to you. This includes service and repairs to the electric motor, upgrade of some motor components, resealing of the pump unit, inspection of all pump components such as pistons and impellers (replacement if they are not to spec), and extensive testing for output pressure, output flow, long term performance, and thermal behavior. We keep the tolerances so tight that no pump will ship without at least exceeding factory pressure specs by 5%.
Top Hydraulics gives you a three-year warranty on the pump rebuld. It is highly advisable to flush your hydraulic system at this point. Simply cycle your top and the storage cover manually while either the reservoir is empty (that way you expell old fluid into the reservoir and suck air into the cylinders), or while the pump is disconnected from the valve block (put a waste container under the valve block). One manual cycle without fluid in the reservoir will expell about 95% of the fluid remaining in the system, which is good enough. Your Audi Cabriolet hydraulics are self-venting. As soon as you have a proper fluid level in the pump's reservoir, the pump can operate again. Air from the cylinders will be expelled back into the reservoir - you will have to top off the reservoir once or twice. While there is air in your cylinders, the top and the storage cover will move down faster than usual. Try to catch them by hand a little the first few times, or simply let go of the convertible top button once they start picking up speed. Almost all air will be out of the system after five cycles. Allow the electric motor to cool down between cycles - it is not made to operate continuously for extended periods.
Cleanliness is very important while dealing with your hydraulic system. Do not allow any dirt to enter the system, and use the proper fluid. For hydraulic fluid, either use Audi fluid, or Mercedes fluid p/n A0009899103, or FeBi 02615, or Pentosin CHF-11S (or Aral Vitamol in Europe). All these fluids will mix. FeBi 02615 is your least expensive alternative, without any compromise in quality.
Shipping inside the US is $15 via USPS Priority Mail.
For international shipping, please choose "Express Box" in https://www.tophydraulics.com/72-international-shipping.html
You send in your malfunctioning convertible hydraulic pump, and we rebuild it for $300.
Once we receive your pump, the turn around time is up to one week for rebuild service and we will ship the pump back to you by Priority U.S. Mail (2-3 days delivery time).
2003-2007 A4 Cabriolet | Rebuild and Upgrade Service for full set of 6 Audi A4 Convertible Cylinders
Send in your cylinders for rebuild service, or order from our stock by selecting "Yes" to order with core exchange.
Core exchange orders include a $200 inventory surcharge and $600 refundable core deposit
Audi part numbers:
8H0871795B
8H0871603B
8H0871604B
8H0871607B
8H0871608B
2008-2009 A4 Cabriolet | Rebuild and Upgrade Service for full set of Audi A4 Convertible Cylinders
Send in your cylinders for rebuild service, or order from our stock by selecting "Yes" to order with core exchange.
Core exchange orders include a $200 inventory surcharge and $600 refundable core deposit
Audi part numbers:
8H0871795B
8H0871603B
8H0871604B
8H0871607B
8H0871608B
New pair of LH (driver side) Hydraulic Hoses for model year '98-'06 Audi TT MK1 convertible. Far exceeds OEM specifications - rated burst pressure of 23,200 PSI. These lines go to the left (driver's side) convertible top cylinder. The lines are clearly labeled and come with new o-rings.
Original Audi p/n 8N7871793.
1998-2006 Audi TT Mk1 Top Cylinder Rebuild and Upgrade Service
Cylinder rebuild/upgrade service for Audi TT MK1 Left Top Drive Cylinder. It is highly recommended to upgrade them in pairs.
Price listed is for rebuild and upgrade service (send us your parts first).
-OR-
Order from our stock with core exchange: $30 surcharge for the service, plus $120 refundable core deposit. There is a $100 surcharge (or deduction from deposit refund) for damaged or rusty cylinder shafts.
P/N 8N7871795A
2003-2007 A4 Cabriolet Right Case Cover Lift Cylinder | Audi Convertible Cylinder Rebuild and Upgrade Service
Remove and send in your cylinder for Rebuild & Upgrade service, or order directly from our stock by selecting "Yes" to order with core exchange below.
Core exchange orders include a $40 inventory surcharge and $150 refundable core deposit.
Audi part number: 8H0871608B
2008-2009 A4 Cabriolet Left Case Cover Lift Cylinder | Audi Convertible Cylinder Rebuild and Upgrade Service
Remove and send in your cylinder for Rebuild & Upgrade service, or order directly from our stock by selecting "Order now with core exchange" below.
Core exchange orders include a $40 inventory surcharge and $150 refundable core deposit.
Audi part number: 8H0871607B, 8H0871605B
Send us your leaking Audi A5 Bracket Cylinder for rebuild/upgrade service.
Turn around time is 1-3 days plus return shipping via USPS Priority Mail.
Three years warranty.
P/N: 8F0871603
Send us your malfunctioning Audi hydraulic pump for rebuild/upgrade service.
Audi p/n P/N 8F0871791, manufacturer's reference DAI1-11106B
Turn around time is 1-3 days plus return shipping via USPS Priority Mail.
Your pump we be fully rebuilt and will exceed OEM pressure specs by at least 5%. Three years warranty.
Special option: Core exchange. This means that you get a rebuilt & upgraded pump from Top Hydraulics' inventory first, then you ship back your original pump for credit of your $200 core refund. You get a pump that has been rebuilt to outlast and outperform brand new ones.
P/N 8N7871791
Rebuild/Upgrade Service for '98-'06 Audi TT MK1 Hydraulic Cylinders plus a full set of new Hydraulic Hoses. Our new hydraulic hoses far exceed OEM specifications - rated burst pressure of 23,200 PSI. The lines are clearly labeled and come with new o-rings.
Core exchange is available for an additional $30 inventory charge and $150 deposit per cylinder.
Included in the price is a $100 core deposit. Top Hydraulics sends a rebuilt pump p/n 8H0959247A or 8H0959247B first (they interchange), then you send back your old one for core refund. The pump is fully rebuilt and exceeds OEM pressure specs by at least 5%. Three years warranty.
2003-2007 A4 Cabriolet Left Case Cover Lift Cylinder | Audi Convertible Cylinder Rebuild and Upgrade Service
Remove and send in your cylinder for Rebuild & Upgrade service, or order directly from our stock by selecting "Yes" to order with core exchange below.
Core exchange orders include a $40 inventory surcharge and $150 refundable core deposit.
Audi part number: 8H0871607B
8H0871795B
2003-2007 A4 Cabriolet Main Lift Cylinder| Audi Convertible Cylinder Rebuild and Upgrade Service
Send in your cylinder for Rebuild & Upgrade service, or order directly from our stock by selecting "Yes" to order with core exchange below.
Core exchange orders include a $40 inventory surcharge and $150 refundable core deposit.
Audi part number:
8H0871795B
1994-1998 A4/Audi 80 Cabriolet | Audi Convertible Cylinder Rebuild and Upgrade Service
Convertible top cylinders rebuild service (using best seals available ) for Audi Cabriolet convertible lifting system. Enter the number of cylinders you need rebuilt in the box below.
Picture shown is right bow tension cylinder p/n 8G0871604
2003-2007 A4 Cabriolet Main Lift Cylinder| Audi Convertible Cylinder Rebuild and Upgrade Service
Send in your cylinder for Rebuild & Upgrade service, or order directly from our stock by selecting "Yes" to order with core exchange below.
Core exchange orders include a $40 inventory surcharge and $150 refundable core deposit.
Audi part number:
8H0871795B