A visual locating device for a motor vehicle, comprising: • an optoelectronic light signal generator operable to emit a light signal; and • electronic control means responsive to activation/setting commands to accordingly control the optoelectronic light signal generator to cause emission of a light signal suitable to enable visually locating the motor vehicle; wherein the optoelectronic light signal generator comprises: • an optoelectronic light source (4-L) operable to generate a light signal, and • a waveguide configured to be mechanically coupleable with an external antenna of the motor vehicle to extend along at least part of the external antenna; wherein the optoelectronic light source comprises a number of light emitting diodes (4-L); wherein the waveguide is configured to either enclose or be externally fastenable to, at least part the antenna, wherein the waveguide is made of optically transparent material that does not interfere with the electromagnetic structure of the antenna and is configured to be optically coupleable with the optoelectronic light source (4-L) to receive a light signal therefrom and, resultingly, be at least partially illuminated thereby; wherein the waveguide comprises a substantially straight element with a widened base portion (17-B) configured to be fastenable to a body part of the motor vehicle via a base plate where the optoelectronic light source (4-L) and the electronic control means, in form of a control circuit, are housed; wherein the electronic control means comprise user-controllable setting means configured to cause all of the following quantities of the light signal generated by the optoelectronic light signal generator to be user-settable both on the motor vehicle and remotely therefrom: - light colour, - light intensity; - light flash frequency, and - number of light flashes, wherein the user-controllable setting means are further configured to allow the user-settable quantities to be set via: - an on-vehicle user interface, and - a personal communication device; and wherein the electronic control means are further configured to allow the optoelectronic light signal generator to be remotely activated via: - a remote control integrated in an ignition key of the motor vehicle, and - a personal communication device into which the remote control is implemented. • an optoelectronic light signal generator operable to emit a light signal; and • electronic control means responsive to activation/setting commands to accordingly control the optoelectronic light signal generator to cause emission of a light signal suitable to enable visually locating the motor vehicle; • an optoelectronic light source (4-L) operable to generate a light signal, and • a waveguide configured to be mechanically coupleable with an external antenna of the motor vehicle to extend along at least part of the external antenna; wherein the optoelectronic light source comprises a number of light emitting diodes (4-L); wherein the waveguide is configured to either enclose or be externally fastenable to, at least part the antenna, wherein the waveguide is made of optically transparent material that does not interfere with the electromagnetic structure of the antenna and is configured to be optically coupleable with the optoelectronic light source (4-L) to receive a light signal therefrom and, resultingly, be at least partially illuminated thereby; wherein the waveguide comprises a substantially straight element with a widened base portion (17-B) configured to be fastenable to a body part of the motor vehicle via a base plate where the optoelectronic light source (4-L) and the electronic control means, in form of a control circuit, are housed; wherein the electronic control means comprise user-controllable setting means configured to cause all of the following quantities of the light signal generated by the optoelectronic light signal generator to be user-settable both on the motor vehicle and remotely therefrom: - light colour, - light intensity; - light flash frequency, and - number of light flashes, wherein the user-controllable setting means are further configured to allow the user-settable quantities to be set via: - an on-vehicle user interface, and - a personal communication device; and wherein the electronic control means are further configured to allow the optoelectronic light signal generator to be remotely activated via: - a remote control integrated in an ignition key of the motor vehicle, and - a personal communication device into which the remote control is implemented. - light colour, - light intensity; - light flash frequency, and - number of light flashes, - an on-vehicle user interface, and - a personal communication device; - a remote control integrated in an ignition key of the motor vehicle, and - a personal communication device into which the remote control is implemented.