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COLORADO · MAIL-IN SERVICE

Mercedes W164/X164/W251 EIS Repair in Colorado

Ship your module from Denver or anywhere in Colorado — we complete the work in 24 hours and ship it back at the return speed you choose at checkout — standard to overnight.

$399 flat 24-Hour Turnaround ~2 day USPS from CO
Text Before You Buy

Why Colorado customers mail in mercedes w164/x164/w251 eis repair

Colorado has roughly 5.3 million registered vehicles, and trucks & 4x4 SUVs make up much of what Denver-area shops and owners mail us. European platforms cluster in Denver, Colorado Springs, Aurora, and most local Denver shops sub bench jobs like mercedes w164/x164/w251 eis repair to a specialist instead of tooling up for one car. Regional west — about 2 days each way.

Metros we serve in Colorado

DenverColorado SpringsAuroraFort Collins

Colorado at a glance

  • ~5.3M registered vehicles statewide
  • Most common: trucks & 4x4 SUVs
  • Colorado requires emissions testing in the Denver-Boulder Front Range metro region; rural counties are exempt.

What you get

  • Component-level repair of the failed EIS (no donor required)
  • Original VIN binding + key pairing preserved
  • Full bench-test with your supplied working key
  • No additional ECU or ESL re-programming needed after install
  • 24-hour bench turnaround
  • Return shipping your choice at checkout — standard, 2-day, or overnight
  • Photo of completed bench-test before shipping back

Shipping timeline — Colorado ↔ Arlington TX

USPS Priority runs northwest from the North Texas network; roughly 2 days. Typical round-trip from Denver or anywhere in Colorado:

  1. Day 0

    You ship

    USPS Priority from CO, ~$11

  2. Day 2

    We receive

    Workshop opens + inspects

  3. Day 3

    Work done

    24-hour bench turnaround

  4. ~Day 5

    Back to you

    Return speed you chose at checkout

Colorado FAQ

Common questions from customers shipping from Colorado.

How long does shipping take from Colorado to your Arlington TX workshop?
USPS Priority Mail from Denver, CO reaches our Arlington workshop in about 2 business days. USPS Priority runs northwest from the North Texas network; roughly 2 days. We start work the same day your module arrives and ship back next business day at the return speed you chose at checkout.
How much does it cost to ship a module from Colorado?
USPS Priority flat-rate from Colorado to Arlington TX runs about $11. The customer pays shipping to us; return shipping back to Colorado is selected at checkout — $14.95 standard (3-5 business days), $29.95 UPS 2-Day, or $74.95 UPS Next Day Air, flat nationwide. Regional west — about 2 days each way.
Do you accept mercedes w164/x164/w251 eis repair modules from Colorado?
Yes — we receive modules from Denver, Colorado Springs, Aurora, Fort Collins and the rest of Colorado regularly. With about 5.3 million registered vehicles statewide, trucks & 4x4 SUVs are the bulk of what we see from Colorado.
Is there a mercedes w164/x164/w251 eis repair shop in Denver I should use instead?
Most Denver shops don't keep the bench equipment for mercedes w164/x164/w251 eis repair — they'd forward the module to a specialist anyway, which adds a markup and a middleman. Going direct to us is usually faster and cheaper. Regional west — about 2 days each way.
Does Colorado vehicle inspection or emissions testing affect this service?
Colorado requires emissions testing in the Denver-Boulder Front Range metro region; rural counties are exempt. Our service is bench module programming only — you remain responsible for your vehicle's compliance with all Colorado and federal requirements.
What if no keys work at all?
You need the Key Replacement via EIS service instead ($150). We program a fresh key directly to the EIS in that case.
Will I need to re-pair the ECU or ESL after install?
No. The repair preserves all immobilizer linkages (EIS ↔ ECU ↔ ESL). Reinstall, insert your existing key, start the car.

Full details

See the complete Mercedes W164/X164/W251 EIS Repair service page

Compatibility list, what it fixes / doesn't fix, shipping instructions, warranty.

Full Service Page

Same service from other states:

AlabamaAlaskaArizonaArkansasCaliforniaConnecticutDelawareFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusetts

Ship from Colorado today

Pay now, get the Arlington TX shipping address by email, drop it in the mail. Full round-trip from Denver: about a week.

(817) 678-3252