General information:
Germany is covered by an excellent and extensive system of major roads    (prefixed B) and motorways (prefixed A for Autobahn). There are no tolls or speed limits on the Autobahnen but a maximum of 130km/h is recommended. Speed limits are 100km/h on major and minor roads outside the cities and 50km/h in cities. 

The Allgemeine Deutsche Automobil Club (ADAC) tel: +49 (0)1805 101 112; fax: +49 (0)1805 302 928; website: www.adac.de) provides breakdown services throughout the country. In the Berlin area, Auto Club Europa (ACE) tel: +49 (0)1805 336 677; website: www.ace-online.de) can also offer assistance.

Emergency breakdown services:
ADAC +49 (0)1802 222 222
ACE    +49 (0)1802 343 536

Click here to get an online map of berlin

Routes to Berlin: 
Autobahn 10 is an orbital motorway that entirely circles the city. The A111 and A115 connect it to the A100 which wraps part way around the Western center from the north and south, respectively. The main roads leading to Berlin from outside the orbital are the A24 (from Hamburg), A2 (from Hanover), A9 (from Leipzig and Munich), A13 (from Dresden) and A12 (from the Polish border).
Driving times to Berlin: From Hamburg 3 hours ; Dresden 2 hours; Frankfurt am Main 5 hours 15 minutes.

Coach services: 
International and domestic routes arrive at the "Zentraler Omnibusbahnhof (ZOB) am Funkturm", located on Masurenallee near the western end of the Kurfürstendamm and the Messe (fair) Berlin. 
Information and tickets are available from:
ZOB Reisebüro tel: +49 (0)30 301 0380; fax: +49 (0)30  3010 3820. 

Taxis are available and U-Bahn station "Kaiserdamm" and S-Bahn station "Witzleben" located nearby.