Towing A Trailer - Volvo 2007 S40 Owner's Manual

your vehicle. If the 12-volt auxiliary battery to be used is in another vehicle, check that the vehicles are not touching to
prevent premature completion of a circuit. Be sure to follow jump starting instructions provided for the other vehicle.
To jump start your vehicle:
1. Switch off the ignition.
2. First connect the auxiliary battery positive (+) terminal (1) to the positive (+) terminal in your vehicle's battery (2),
marked with a "+" sign.
3. Connect the auxiliary battery's negative (-) terminal (3) to the ground point in your vehicle's engine compartment
near the driver's side spring strut (4).
4. Start the engine in the assisting vehicle, then start the engine in the vehicle with dead battery.
5. After the engine has started, first remove the negative (-) terminal jumper cable. Then remove the positive (+)
terminal jumper cable.
WARNING
PROPOSITION 65 WARNING!
Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the state of
California to cause cancer and reproductive harm. Wash hands after handling.
WARNING
Do not connect the jumper cable to any part of the fuel system or to any moving parts. Avoid touching hot
manifolds.
Batteries generate hydrogen gas, which is flammable and explosive.
Battery fluid contains sulfuric acid. Do not allow battery fluid to contact eyes, skin, fabrics or painted surfaces. If
contact occurs, flush the affected area immediately with water. Obtain medical help immediately if eyes are affected.
Never expose the battery to open flame or electric spark.
Do not smoke near the battery.
Failure to follow the instructions for jump starting can lead to personal injury.
Do not touch the jumper cables during the attempt to start the vehicle. This could cause sparks.
147
06 Starting and driving

Towing a trailer

General information
Volvo recommends the use of Volvo trailer hitches that are specially designed for the vehicle.
CAUTION
Models equipped with the B5244S7 engine (engine code 39, which is the 6th and 7th digits from the left in your
vehicle's VIN number, see
any kind. This could cause damage to the vehicle's emission control systems.
Maximum trailer weights recommended by Volvo are:
page 227 for the location of the VIN plate), may not be used to tow trailers or vehicles of