Question about BMW Z4

Open Question

My 2003 Z4 convertable top stopped working. It will unlatch but not down. Could it be a fuse? If so, which fuse?

Posted by Anonymous on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
hi99ins
  • 123 Answers

SOURCE: z4 roadster 2002 convertible top will not open

get a dealer to look at it. The mechanism is fairly complex and the motor is very expensive. I you bust either the frame or the motor it'll really cost to fix. It may be freed up at much lesser cost.
Hate to tell you to get other help but thats my best advice.

Posted on Jan 20, 2009

Ad
techjuli
  • 157 Answers

SOURCE: The convertible top of my 2003 z4 won't retract.

I have this same vehicle and have had some problems with my top as well. Apparently, it is pretty common as I was recently talking to a shop owner with the same model and I were comparing notes. First thing to check is that the two "nobs" in the trunk are not rotated. The two nobs I am referring to are located on the top of the trunk when opened and when moved, either drop or lower the compartment into which the convertible top drops into when lowered. If these nobs are not turned so that the compartment is available, the top will not work. I have always wondered why they even installed those, but I was told it was so that we could have that extra 3" of storage space if absolutely needed. If the nobs are in the right position and your top is still not working, you can manually drop or bring up the top by turning the red handle (also located in the trunk near the convertible top storage) so that it is no longer flush, but turned so that you can see the 'O' shape. This has been my only option when my top started acting up in the middle of a Florida thunderstorm. Fantastic timing these things have. I hope this was helpful. If you are like most others who own the z4, or any bmw (or even a vw), you know that the mechanics (engine, etc.) are great in the fact that they rarely, if ever, cause any issues, but silly things like the stupid cup holders (don't get me started) and eventually bigger, but still aesthetic, items liek the top are the first to go. Would still never trade the z4 for a sedan.

Posted on Jun 07, 2009

  • 1 Answer

SOURCE: convert top stopped working

I had this problem not long ago. In the trunk on the right side (facing the trunk) there is a manual switch for the top. My son changed my tailights and accidentally switched it to manual. I switched it back to automatic and have not had probs since.

Posted on Jul 14, 2009

  • 1 Answer

SOURCE: convertible top won't open

If its yellow, thats a good thing. Check in the trunk that the two knobs that hold the top when retracted are in the down position. Top should drop like it always has. LOVE MY Z4!

Posted on Jul 24, 2009

Obertelli
  • 3006 Answers

SOURCE: Convertible top will not go down

Sorry, but there's no easy fix for this.

From experience I'm confident that one of the microswitches or relays which control the roof folding sequence has failed. If you're really unlucky then it's the electric motor (rare) or one of the parts attached to the motor assembly (not so rare). Microswitches and solenoids are relatively cheap, but it's a laborious process even for a pro to isolate which component has failed and often a real job to get to the offending part and replace it.

As a basic guide though, first check the fuse. If it's failed then DON'T just replace it without further investigation: fuses do not wear out, they fail because there's a fault somewhere which has caused too much current to pass through and the fuse is sacrificed to prevent fire or other serious damage. A simple tip is to listen to the solenoid for a click when activated. If there is none then check to confirm power is reaching the solenoid; if there is then give it a sharp tap when operating the roof. This sometimes causes a dodgy solenoid to operate but it will still need to be replaced. If the solenoid appears to be OK then you'll need to trace and isolate each component in the circuit to test them individually. If they all check out OK then you'll need to carefully check they wiring loom, especially where it passes through bodywork.

To do all of this you'll need time, patience, some basic automotive electrical tools and it's vital that you obtain both a circuit diagram and a physical wiring schematic (the first shows how the circuit works, the second shows how it relates to the actual wiring). A Haynes manual is usually essential for this and will pay for itself with the first repair you use it for.

Although this kind of job may seem daunting you can usually narrow down where the fault may lie or even identify what's wrong which will save a lot of labour costs if you choose to get the repair done professionally.

Good luck, and fingers crossed for a fast and obvious fault-finding.

Posted on Sep 16, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

BMW Z4 convertible top opened and now wont close. Motor runs then stops. Latch is stuck and the emergency pull cord will not release. How do I get to the latch to free the top?


try a spray lubricant into the motor mechanism and grease any visable wire cables that run from/to motor ,not the electrical cables the bare wire winder cables,also grease/ lubricate any accessable pivot/hinge points , gently pull the cord and gently push the roof back and forth occasionally trying motor with a bit of patience this should get the roof moving , also look for anything that may be snagging the roof/mechanism as there is a pressure protection system to stop the roof being fully closed on say someones hand so preventing injury

May 03, 2014 | 2004 BMW Z4 Roadster

1 Answer

Does the convertible top of a bmw z4 operates with hyrdalic oil ?


Yes. There is a pump, that usually brakes due to rainwater. In newer models it it better sealed. New pump costs unfortunately about 1000 euros. sorry to bring you bad news.

Feb 23, 2014 | 2003 BMW Z4

1 Answer

Convertible top motor


Motor is shot common for water to build up in the plastic housing causing the motor to fail.

The reservoir / hydraulic motor is located down inside the cavity where the top pivots on the body on the drivers side. It is inside a plastic housing

These are not easy to get to because the whole top needs to be removed to access it.

Hope that helps.

May 10, 2013 | 2003 BMW Z4

1 Answer

Convertable top slow moving


You are either having
a. large Draw on the motor
b. Motor is Weak
c. Mechanical Mechanism on the Top is rubbing and putting pressure (Friction).

Recommendation... White Lithium Grease on the Moving Parts and see what happens....

Apr 08, 2013 | 2003 BMW Z4

1 Answer

2003 bmw z4 top moves sluggishly


Asuming that you re talking about the convertable top. you can try two things. the motors some times do not get lubricated and over time the Grease on the motor gets tacky. By cleaning the motor and reapplying new grease and operating the motor a few times before reinstalling it to work in the new grease. If there is not improvement in the operation of the motor it should be replaced to bring the convertible top back to 'new' condition.

Apr 22, 2011 | BMW Z4 Cars & Trucks

1 Answer

When the top is put down on my 2004 New Beetle GLS Convertible 1.8L Turbo, there is a beeping noise that continues. How do you stop the beeping noise once the top is down?


Just in case you still needing assistance.......

The micro switch in the handle assembly where you unlatch the roof is bad or out of adjustment.

Dec 19, 2010 | 2004 Volkswagen New Beetle Convertible

2 Answers

2003 BMW Z4 Power top will not go down auto. But will go back up by pushing button. A/C will not work. Radio powers up. Just no volume. Turn signals work outside not inside on the cluster


There is a little switch in the trunk in the middle of the panel behind the seats....check to make sure that the switch is engaged and functional...easy repair if the switch is faulty

Oct 04, 2010 | 2003 BMW Z4

1 Answer

Convertible top won't open


If its yellow, thats a good thing. Check in the trunk that the two knobs that hold the top when retracted are in the down position. Top should drop like it always has. LOVE MY Z4!

Jul 13, 2009 | 2005 BMW Z4

1 Answer

How do you add oil to the convertable motor?


On a z4 the whole top has to be removed to add oil. The hydraulic pump is connected to the top in the drivers side b-pillar; Usually the convertible top motor will end up being submerged in water because the drains get clogged. I would recommend taking the vehicle to your local bmw dealership

Apr 30, 2009 | 2003 BMW Z4

2 Answers

The convertible top of my 2003 z4 won't retract. The light for retraction went on, blinked several times and then stopped. Now no light is coming on and the raise and lower buttons are non-responsive....


I have this same vehicle and have had some problems with my top as well. Apparently, it is pretty common as I was recently talking to a shop owner with the same model and I were comparing notes. First thing to check is that the two "nobs" in the trunk are not rotated. The two nobs I am referring to are located on the top of the trunk when opened and when moved, either drop or lower the compartment into which the convertible top drops into when lowered. If these nobs are not turned so that the compartment is available, the top will not work. I have always wondered why they even installed those, but I was told it was so that we could have that extra 3" of storage space if absolutely needed. If the nobs are in the right position and your top is still not working, you can manually drop or bring up the top by turning the red handle (also located in the trunk near the convertible top storage) so that it is no longer flush, but turned so that you can see the 'O' shape. This has been my only option when my top started acting up in the middle of a Florida thunderstorm. Fantastic timing these things have. I hope this was helpful. If you are like most others who own the z4, or any bmw (or even a vw), you know that the mechanics (engine, etc.) are great in the fact that they rarely, if ever, cause any issues, but silly things like the stupid cup holders (don't get me started) and eventually bigger, but still aesthetic, items liek the top are the first to go. Would still never trade the z4 for a sedan.

Apr 06, 2009 | 2003 BMW Z4

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

39 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Anthony Jones
Anthony Jones

Level 2 Expert

128 Answers

Frankie B

Level 2 Expert

65 Answers

Doberman

Level 2 Expert

254 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...