Horn Replacement, Range Rover Classic
  Lo Tone Horn

Introduction

I once had to replace one of the horns (there are two) on my Classic because it failed due to ingress of mud and dirt on one of my off road excursions.   John Benham had to replace one of his recently on his 1989 Range Rover and kindly supplied this description. 

Photo at right of OEM Mixo lo note horn courtesy of Speedycarparts.com

Parts Needed
 
<>There are two horns, with high and low tones respectively. From long experience with Land Rover parts sourcing, John did not even bother to contact the dealer for the (doubtlessly considerable) price of the genuine part.  He found that the stock hi-note horn is a Mixo (now Valeo) TR99R - Valeo's part number is 479005 @ $35.00/ea from a local import auto parts outlet. I found the OEM Mixo horn, which seems to be made in France, at Speedycarparts.com for $30 for the high tone and $23 for the low tone units (see picture at right). Both horns are available from Atlantic British for $27.95 each.

Another option is to replace the original with one of the generic or "universal" horns commonly available in hi and lo tone models. John found that for about $12 you can get a universal replacement from NAPA (part # 730-1054). For a more genuine sounding effect, partsamerica.com (the online outlet for Kragen, Checker, Schucks and Advance auto parts) has a "European hi tone" Chieftain 30112 and a Chieftain "European lo tone", both in the $12 range. 

OEM Mixo Horn
 Hi Note Horn
 Generic Horn
Reverse side of OEM Mixo horn shown at top of page
(Photo courtesy Speedycarparts.com)
 Replacement Hi Note horn (hi and lo note horns look similar)
(Photo courtesy  of Atlantic British)
Generic Euro hi note horn (Chieftain  30112). Photo courtesy of partsamerica.com.

Procedure

There are two horns, with high and low tones respectively.  They are housed behind the plastic/metal grill near each headlamp.  The grill can be pulled out by un-snapping the plastic tabs on top then gently angle the grill from its four support slots on the bottom then pulled out.

The Mixo uses a 13mm nut and the NAPA uses a 10mm nut.  Both can be replaced within a few minutes using the same electrical spade connectors; there's no polarity involved.  To eliminate any rattles from reinstalling the grill, John pressed down the upper metal supports using a punch and small hammer after installing the grill.  This tightens the connection between the grill's plastic tabs and body.



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If you have comments, suggestions or experience to contribute, please email John Brabyn